Is this Guy at Work Making too many Cheeky Remarks?

So this is about a guy that I meet in the canteen on some of my shifts. In general, he seems kind of like the sort of guy who is too wise to get involved in work drama who quietly has a laugh to himself while watching others. I'll put the instances in the order they happened.

A few months back I happened to make a reference to the fact that a manager was gay while we were in the canteen. A bit later this guy said "you could be gay. I just joked "oh you never know". But then after a slight pause he said "you heard the rumour"! I forget exactly what I asked after that but I don't think he gave a clear answer. It seemed like he could have been trying to tease me... as in pretend that he thinks I've heard a rumour when he knows full well I haven't, to make me feel like there's something I should know. Now there did happen to be some talk about how a different newly hired manager could be gay a few days earlier, and we were both present for it... so unless that was the rumour he was referring to.

Another time we were talking about how I needed to be represented by a union rep in a meeting to get off a charge. He remarked that the rep was able to help me out in that meeting. As that rep was next to useless I felt the need to say that "it was a team effort". But the guy then says "and who's team are you on?". I found that quite condescending. I mean it wasn't like the rep was a lawyer and I just kept my mouth just the whole time. I think he was implying that I was ungrateful to the rep.

The other day the head manager came into the canteen. After a bit of talk the manager asked "how's the new canteen?". I said that it was alright but that there were quite a lot of flies around. There didn't happen to be flies when I said it though. Then this fella says "there's no flies now though" looking at me like I'm a complainer. And then he said "maybe it's the shit you're eating". I didn't like that he said this in front of the manager.

One day there was something that I wanted to view on the company app that it wouldn't open with my phone, so I asked him if he could open it, which he did. It showed a list of important dates and I asked if I could take a picture of his screen which he allowed. He said "there now, you only got the screen up very close so no one knows it was me who helped you". He then turned to the other guy in the canteen and said "you saw nothing"!

Lately he mentioned how a staff member is quitting. I didn't know this and he acted surprised, saying "you know everything that's going on around here". I didn't like this as I was genuinely confused as to whether he was being sarcastic or not. Maybe he does think I know all the gossip. On the other hand I did leave the work whatsapp group about 6 months back and there was some talk about this. So unless he was using irony at how I'm uninformed as a result of not being in the group.

When this guy was talking about how he's part-time (3 day week) I remarked on day "how come we see each other so much?". He said "maybe you fancy me". As I took a sec to reply to this he began to laugh and I said "hey if I see you a lot, you see me a lot". He said "not necessarily"! I know he was only joking but I pressed further and said "know because we only ever meet in the break room". At this point he started treating the question seriously and tried to answer why it might be.