should i delete him of facebook?

[k h]

i hooked up with this guy like 2 months ago at a party and the next time we met at a club he kept dancing/hooking up with others girls so i hooked up with other guys infront of him to piss him off. i actualy kinda liked him and i know he liked me too but now there is like 0 feelings for each other and its REALLY awkward wen i see him around school we dont even smile. everytime im on facebook i see him liking other girls pictures and it pisses me off i think if i deleted him i wud feel way better since we dont even talk. i only have 300 friends on facebook cus i only keep the people who actually take the time to talk to me. should i delete him or am i being too immature?