Search Results: deciding between 2 guys

I do an animal course and I spend one day a week on an animal unit at my college. A guy there looks really young – around 20/21 and he’s not really my teacher, he’s there to guide us and help if we need it. A few things have happened and I’m good when it comes to knowing if someone likes someone.

1. He asked what my name was and then called me ‘Lazy Cara’ laughing, as he caught me standing doing nothing

2. He said “you alright trouble” while smiling and I’m not trouble. I decided to google what others personal opinions were on the nickname 'trouble' to find people saying similar things along the lines "he is attracted to you (sexually too) and knows you'll get him into trouble" which makes sense as he is somewhat my teacher and i'm and student so it could get him into trouble

3. I helped out at the open day and when he started his shift he saw me from a far and looked twice as though he was surprised and excited to see me and kept trying to catch my eye

4. He was talking to someone and kept looking over at me – I wasn’t looking at him, I saw from the corner of my eye and looked over once to see and he was staring right at me

there's been other things and I’m sure there's more to come but what do you think? And is it wrong for a ‘teacher’ to be attracted to a student? And is it wrong for me to be attracted to him? I’m 17 and he’s around his 20’s and I wouldn’t class him as my teacher so it’s not that wrong, is it? & i'm not saying it will but if something was to happen between us (not sexual) what's the worse that could happen do you think?

I met this guy on an online art website in February. We talked almost everyday until about a month or two ago and he became insanely distant on me. He met a girl a bit after me and for some reason I knew something was gonna happen between them two. It makes me mad that he has just decided to drop me from his life all together since they're now together. I shouldn't think about it but it just irritates me. I've messaged him maybe two or theee times and they're pretty far apart (like i didn't message him 2-3 times in a day) Should I message him a if yeah what should I say then?
Or should I just never talk to him if he messages me after just dropping me?