Well there's this Guy and we have dated before and I really do like him and he broke up with me because he had feelings for someone else and now he has a new girlfriend but sometimes we flirt and act all cute and we have even been told were cute together when we wernt dateing and he was with this other girl he looks at me a lot like from across the class at school and when we walk he always seems to end up next to me no matter what but other times I feel like he doesn't like me anymore and like I annoy him like when he doesn't reply to me or he doesn't talk to me and I'm getting mixed signals from him should I give up on him or keep trying? And does he like me?

Honestly, I've been in your situation.The fact that he dumped you to begin with for another girl just says a lot about him.I hate to say it, but it sounds kind of like you're his backup plan. The girl he runs to to ensure he won't ever fully be alone if things go wrong in his current relationship. He'll run back to you until he finds someone "better" then he'll dump you again, but never fully let you go. Kind of like dragging you along because he thinks that you'll never leave. Trust your gut. If you feel like he doesn't like you anymore, and the sparks just aren't there, you're probably right. My advice to you is to just try to move on, find someone better, because while you're wasting your time going after someone who isn't worth it, you could be missing out on someone who is.