This is a problem I often debate about internally is whether I truly fit in with the company/coworkers I work with despite me liking the job and being good at it.
Basically, the group of people I work with seem to all be the exact opposite of me. They love hanging out after work, going out for lunch together, going drinking at basically any bar/restaurant they can find in the city, going to clubs and so on. This isn't just a few people, this is the entire group I work with, management included.
Me on the other hand, I don't care for any of that and just see this as a “9-5 job” where the second I'm done work for the day I just want to go home, not hang out with anyone there or think about work or anything. My relationship with everyone is that they're coworkers. They're not friends, they're not people I'm hanging out with, they're coworkers.
I can definitely feel there being a bit of a distance between us now due to this. However, I like this job and am good at it and this field isn't one you can really do elsewhere so I don't want to leave for that reason.
But the more time goes on the more I feel like I just don't fit in with their “culture”.