Why are you even going to waste your valuable time asking a silly question like this to someone? There are so many ways to answer this, but I have a simple one-word response: Don't. Life is too short to worry about boys you already know aren't going to make you happy. Life is too short to put work into something, a matter of fact, someone, who doesn't reciprocate the effort. Life is too short to cry over boys who clearly aren't worth your tears. Life is all about ~doing~ what is best for you and only you, so ~DON'T~ waste your time, energy, and tears on someone who isn't.
Walk far, far away.
Whatever you do, don't keep letting him back in. I try really hard to never give the benefit of the doubt to people who hurt me. If a boy fucks up once, I'm so beyond done with them. You look weak if you keep giving them second chances. Fool me once, shame on you, fool me twice, shame on me.
Admit your feelings to yourself, not him.
That's what they want. Boys want to know and see that you care. I swear it gives them so much satisfaction, so don't give in. Try journaling your feelings or sharing them with your besties, but whatever you do, try not to confront him. If you're truly seeking closure, don't ignore him, but also don't smother him. Try to approach the situation gently before completely letting it all on the table.
Analyze the f**k outta these F**k Boys.
Recognize his actions based on where you are. If he's super into you while his friends are near or if he only wants you when you're alone behind closed doors. That is a huge red flag. A text like "you're so cute" or "I wanna see you" can turn into "Nah, I'm going out tonight with the boys" at the snap of a finger. Just make sure you're picking up hints without reading into anything too much because then it's wasting your time in the long run.
It's totally okay if you're cool with just a hookup, but if you are looking for a relationship, you need to steer clear of the boys who say "I'm not looking to date in college" after leading you on for weeks. If he wants to play games with you, let him know you can play it way better. But by playing his games, you're wasting more of your time, energy, and tears, so try to just let him go and find someone that isn't a f**k boy.
The end.