I met this guy at a party about a month ago and since then we've seen other a few times just around campus and other parties. Anyway the first time we met there was an instant connection, like we had a lot in common, liked the same stuff, ethnically from the same place etc. and he was quire flirty so I assumed maybe he was interested. Anyway, i didn't do anything about it because I found out he has a girlfriend of a few years and was like whatever, we can at least be friends since we did get on. Met him again at another party a few weeks later and again he was quite flirty but not as intense as the First time and I got the feeling that whenever he got drunk he just becomes a bit more flirty and touchy and my friends agreed since they've seen him like this many times but he never does anything, its all harmless.
Since the second party he's followed me on a bunch of social media platforms including fitness apps, film apps etc. and we message each other a lot about some common interests, his insight into that kind of stuff is really cool and I like having people I can talk to about these more obscure hobbies of mine lol. I've kept the conversation very much on the common interests and not really answered anything that could be a bit more personal just because I don't want to get too close knowing he's in a relationship.
But I talked to a friend and he was like 'yeah you two definitely have a vibe' and I mean yeah he was flirty but he's like that with everyone and he's really nice to everyone as well so like this 'vibe' that people are talking about I thought was just us being nice to each other.
Nothing has happened, its all very surface level conversation but like I don't know how to feel about this observation that people have made. I feel like I shouldn't even be messaging him just in case he misinterprets or something or his gf does.