Search Results: getting teased by a guy

My guy friend and I tease each other a lot. Usually it's silly and harmless but he seems to like it more the harder I tease. I'm really sensitive so I try to never tease anyone too hard or about personal stuff, like weight or looks, but he seems to want it. Is it fun for guys to really bust balls? My friend calls himself fat, I never would, but we were dancing and he was slamming his ass against mine and I said his ass was huge. He admits to getting bigger jeans.

He's super vain about his long hair but his hairline is really receding. His guy friends bust on him for that and he seems to be ok with it.

He can't say r's right and after he mentioned that I said I'd noticed but hadn't said anything. I've started teasing him about that too.

Today we were carrying snacks to a club mtg and he dropped some cereal bars behind so I picked them up. Once he realized this he started dropping them on purpose and I saw him smiling at me picking them up. Once we got to the mtg I took the cereal bars I'd picked up and threw them at him, hard, one by one.

We have tons of running jokes and like to prank each other.
Is this how guys like to flirt? Should I get meaner? He's called me sassy before, in a good way. He doesn't act this way with other girls, does that mean anything?

We ate lunch together today, his idea, spent all day after exams together at school sitting with our arms pressed together. Then I gave him a ride home and we hugged.

We talk everyday and/or text, message, snap. He sends me shirtless snaps of himself in his room and has sent me a kiss emoji twice and claimed he hit the wrong one both times. We jinx each other all the time. He's always talking about sex around me or makes sexy eyes and claims he's kidding.
I was dancing at our club mtg and I saw him watching me but pretending to be reading.

Is he just being friendly or flirting?

This guy and I are friends who work together. I'm technically his boss. We constantly get teased that we are going to date one another. We text almost everyday, for hours to the point where he and I have to say goodnight to get the other to shut up. He is super supportive of my dreams and pushy, telling me I need to go back to school and what not. Recently, he bought me a nameplate, and gave me fifteen dollars to pay for my substitute teaching license (I want to be a teacher), and wrote a handwritten note saying how he believed in me and that he wanted to see the nameplate on my desk one day. Is this normal behavior? I asked my guy friends and one of them who I am super close with was like... Dude, I wouldn't do that for you and I love you. On the other hand we joke around that we are getting harassed by everyone about us dating. He even told another friend that if they like me so much why didn't they date me... Is that deflecting... I don't know this is so confusing.

Before, we weren't really that close. He's a grade older than me, so I didn't see him or talk to him that much.
This year, we are taking the same elective and we even sit on the same table. At first, we just made polite, small talk. But as time progressed, we've become a bit more close. He's told me some funny childhood stories, I've told him some funny childhood stories, he makes me laugh, I make him laugh, and we even share the same music taste!
Now we really get along, and we've talked like this for 4 months, almost 5 now. I've been getting really happy when I arrive to my elective, because I get to talk to him. We always have a ball together, and can just talk about anything. He's also very polite to me, like a gentleman (like he offered to bring me a chair when I didn't have one, and gave me his spot when the chairs ran out), but at the SAME time teases me and jokes around with me. He always looks at my eyes when I talk to him/he talks to me. He sounds like he's showy sometimes, but I don't mind, because it's those things like: "Yesterday I ran 3 miles" or things like that.
I don't know, I've just been feeling connected in a way to him. I don't know if it's a new friendship that's forming, or if I like him.. He's just all these things, kind, smart, polite, adorable, a GENTLEMAN, and even cute.
Do I like him? AH, I don't know anymore ;-; I'm very shy, and he knows it by now. But when I'm with him, I just open up, and it's honestly the BEST feeling ever.
Help?