The Post: 8 Signs a New Friendship Will Last a Lifetime first appeared on Crafting Your Home
The strongest friendships are rarely built in one unforgettable moment. More often, they grow through small, everyday actions: checking in after a busy week, celebrating each other’s good news, making time for honest conversations, and showing up when life becomes complicated.
No one can know at the beginning whether a new friendship will last forever. But when certain patterns appear early and continue over time, they can be encouraging signs that two people are building a meaningful connection.
Think of these qualities as the foundation pieces of a long-lasting friendship.
1. You both make the effort to stay in touch
A friendship feels different when both people contribute. It does not mean every message, invitation, or phone call has to be perfectly equal. What matters is that one person is not always doing all the work.
Research on friendship maintenance highlights behaviors such as interaction, openness, positivity, and supportiveness as key to keeping friendships strong.
Adult friendship research also points to the importance of a “reliable alliance”—the feeling that both people can count on each other.
A good sign: You take turns making plans, checking in, and keeping the connection alive.
2. Time together feels intentional, not just convenient
Many friendships begin with a shared class, a workplace conversation, a neighborhood chat, or a chance meeting. But deeper friendships usually grow through repeated time together.
Communication researcher Jeffrey Hall studied how friendships develop through shared time. The study estimated that casual friendship may form after around 30 hours together, friendship after around 50 hours, good friendship after around 140 hours, and best friendship after around 300 hours.
These numbers are not a friendship formula or a deadline. They show that meaningful connections often grow through time spent together.
A good sign: Your friendship expands beyond occasional conversations and becomes part of everyday life through walks, meals, errands, or regular check-ins.
Related: Couples Are Recently Redefining “Quality Time” and Finding Connection in the Small Moments
3. You can be more honest without feeling judged
A lasting friendship usually creates space for honesty. Over time, people often move beyond surface-level conversations and feel comfortable sharing more personal thoughts and experiences. Research on adult friendship describes self-disclosure- the ability to share personal information openly- as an important part of developing closeness.
Healthy openness is often mutual, with one person’s honesty creating room for the other to share, too.
A good sign: You can talk about a difficult day, a personal worry, or something you are struggling with, and your friend responds with care instead of judgment or gossip.
4. They show up during difficult moments, not only the fun ones
Fun memories are an important part of friendship, but strong friendships often show up during challenging seasons.
Friendship research identifies emotional support as one of the major roles friends can provide.
This can include encouragement, acceptance, sympathy, trust, and practical help.
A good sign: When life gets stressful, your friend doesn’t disappear. They check in, listen, and ask how they can support you.
Sometimes the most meaningful question is simple: “Do you want company, advice, or help with something practical?”
5. You celebrate each other instead of competing
A healthy friendship allows both people to grow. One person’s success does not have to feel like a threat to the other.
Research on friendship functions highlights self-validation, the support and encouragement that helps people feel valued, as an important part of close relationships.
Positivity is also a behavior linked to maintaining friendships.
A good sign: You can share exciting news about a goal, a personal achievement, a home project, or a new chapter in life, and your friend genuinely celebrates with you.
6. You can disagree and still respect each other
A lasting friendship isn’t one without disagreements. Different opinions, misunderstandings, and occasional disappointments are part of any relationship.
What matters is how people handle those moments. Friendship research separates positive qualities, such as intimacy and reliability, from negative patterns such as ongoing conflict.
A good sign: After a disagreement, both people can talk honestly, acknowledge what happened, and repair the connection instead of holding onto resentment.
A strong friendship is not built on never making mistakes; it is built on knowing how to recover.
Related: 8 Small Courtesies That Impact How Others Respect You
7. The friendship has warmth and room to breathe
Close friends care about each other, but they also allow each other to have separate lives.
A lasting friendship does not require constant communication, identical schedules, or being available every moment. Consistency and support matter, but so does giving each person space to grow.
A good sign: You can have a busy week, spend time with other people, or decline an invitation without worrying that the friendship will suddenly disappear.
The best friendships often feel dependable without feeling restrictive.
8. You create small traditions and imagine a future together
Many lifelong friendships are built through simple routines. A monthly dinner, a yearly celebration, a regular walk, or a group chat can become a small tradition that keeps people connected.
Research on friendship maintenance shows that communication frequency, openness, reassurance, positivity, and support all play a role in maintaining close relationships.
A good sign: You naturally start making plans beyond the present moment because you expect this person to stay in your life.
A friendship that lasts does not need perfection; it needs care, trust, and the willingness to keep choosing each other.
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