I have a case a guy in my classroom I'm 17 so I'm not little a guy in my classroom is quite shy we talked last year he approached me first and that's what I like I wasn't into dating or having a boyfriend I was really focused on spirituality and having no bf at the time so I noticed the guy flirting but didn't flirt back he knew e since 3 years ago but he had never talked and I hadn't seen him like that sometimes I didn't notice he was in class he confessed however he noticed me and he had been trying to talk to me but I was so serious or mad I said no and smiled he asked me for my kik when he saw me he talked to me smiled... He flirted as in saying i looked nice in piks saying he was cute or giving me candy and I noticed when I talked to a guy he got mad and I called him but didn't know what to say so asked him for the homework and he got mad and said really do u just talk to me for homework and there I noticed he was jealous but it might be just mw thinking that later on he stopped talking he called me beautiful but he talked to more girls and an easy girl confessed he liked him first so she beat me and he asked her out they have been dating for a year we tease each other but recently I noticed he is shy around me with her and he stares at me a lot and smiles to me but I don't flirt back with him like I said I play hard to get because I like the guy to work but I started feeling something for him specially to see how good of a bf he is but I will never go ruin a relationship so the question
How do you show your feelings towards a girl you like or don't like? And can you get feeling for a old crush? Can you fall for someone when you have a girlfriend?
First question so excuse I wrote a lot