How to appraoch a guy you like? and he knows you already like him but he has done nothing.?

the situation is I like this guy and then we started being friends with benefits afterwrads it didnt work becuase he wanted to study and focus on that so we stayed two months not doing it anymore becuz he decided (a jerk lol ) anyways i really like him still and i do not want to start anything like no respect to my self becuz i do regret that i started this with him thank god we didnt continue anyways i wanta serious relationship the thing is i would like to know how to approach i feel a bit hopeless becuz i dunno i want him so badly but i do not show it and we dont talk we just say hello but he sees me always wiht his best friends they are boys and i am really close to them but he doesnt say anything he is more quite calm and not that outgoing if u know what i mean any suggestion how to make a plan to get him like me in a good way again ^_^ ??