How far do you agree that impressions play an important role in forming lasting relationships, esp. in university. [3000]

As students, we had a huge pool of very similar people to befriend. But for me, even most of the friendships then were simple, shallow, and quite meaningless. The friends I still am close to are people I got to know as I work/ studied with, not with those befriended just for the fun and sake of it. Then with NS and work, it becomes harder to meet people as individual commitments increase, as so did differences. For NS dobby pretty much just did as master dictates, little social opportunities there. And working part-time is brutal, cut-throat, backstabbing and people there totally dgaf, just clock in slash poke push push clock out.

Made 2 new friends recently.

Friend A is straightforward, almost demanding in chat. Out of nowhere just starts asking for information, offering stuff they tell me I need, sets meetings the very week. Makes for very quiet, independent company IRL. Would otherwise be the perfect insurance agent imo. Kind of just very practically goes about doing what they want.

Friend B is very sporadic, with long intervals in chat. Meeting agreed on a week in advance was cancelled on the day itself only when I checked in with them... twice, so it only made it near 3 weeks later. Was really enthusiastic when we met, which I thought was cute they were so comfortable around me, but then got offended I wasn't as enthusiastic since it did kind of threw me off.

Tried studying with both, around the same age but polarizing personalities. Met them around the same time, separately. Neither, like me, is perfect, but probably wouldn't bothered talking to either if I were more judgmental like before, but at some point NS just took my sense for drama and made me more accommodating towards stuff like these to the extend when it registers but doesn't even bothers me at all. So impressions didn't factored in. Either way, one still works while the other did not. I thought communication would be key but neither really does it anyways. Felt like change is crucial as I am progressing through really different stages in life.

With uni being the next phase in life, can't help but worry how are people and relationships like there? Is it like a mix between work and school? Or do you really only interact in group projects? How do you decide who to befriend and who not to? Talk to everybody? Does it lasts? Do people even make friends anymore? Or does having more commitments just make people care less about the joys of friendship and realize that relationships are actually tiresome and not worth the resources it takes to grow and maintain? Is that how I eventually empathize with those who sits around whining to others about how they dislike the system they unfortunately find themselves in but simply detests and wants to escape but resists making any effort or time to try and do anything about anything beyond electing to not partake because they're already too disillusioned lol and disappointed lol and blames idk everybody jkjk hopefully not?