Search Results: guys act like jerks

He is an introvert and barely talks to anyone, always seemed cold and kind of seemed like a jerk saying dirty jokes, so I was surprised when he started approaching me and being friendly. Especially since I'm the most shy, boring, and innocent person ever.

We became friends and pretty sure I'm his only friend on campus. I thought he liked me until few months later he mentioned his long distance girlfriend. He talks adoringly of her sometimes. I'm pretty sure he met me after.

But is it ok for a guy to do these things if he has a girlfriend?:
-frequently offers & meets me to help with homework despite being extremely busy, sometimes twice in a week
-sits next to me in every class
-laughs at all my dumb jokes
-gave me his number, we text eachother funny pics, sometimes conversations that might last hours (never anything sexual)
-once gave me a ride to class
-tries hard not to swear around me since I said I wasn't used to it
-extremely nice to me, tones down his harsh humor and always makes sure he doesn't offend me
-always listens to my problems, giving advice & help, complements my art all the time, even though he otherwise doesn't care about people and finds them annoying

.. or showed that I gave in by replying.

Facts..
Known him for years

he's a jerk that fucked things up, complimented my pics and asked to meet even tho he is engaged.

I ignored, and acted disinterested which makes him speak more.

So relating back to the question, cause its bugging me and I have "what ifs' in my head.