Wanting someone to love just to be happy.Why?Ive tried everything but nothin works. is this like love anxiety?

Im 15 and go to highschool & dnt know what my problem is and how to get over it. recently I've been liking someone for 2 years & right b4 that i broke up with someone that I loved so much. I think I became depressed after breaking up, ate a lot & gained weight leading to stretch marks around my hips.(this was 2 years ago, my 1st tru luv). Now the person who i like right now who i dont no, I cant stop thinkin about him. I use to say I luv him(in my mind) & cried at home cuz he never paid attention to me(never had cles with him @ skool & I get nervous whenever hes around me but Im 100% sure he doesnt like me)& i realized, how can U luv someone U dont no. The only reason i claimed to “be in love” with him was cuz of his looks. I always imagind how hes perfect 4 me and how we are in luv(only my imagination) & couldnt stop thinkin about ths .I then saw that he had an ugly personality and i still cant get over him. I feel like if he wants me, im happy. Whats wrong with me?this isnt normal