Help me please guys suck!?

so this guy..we dated for 2 months. he was always really jealous..i think that him partying isn't the real him..and i kinda feel bad that he's like loosing his way. he cheated on me though and while he was wicked drunk he slept with a girl and hooked up with multiple others. he kept lying until his best friend told me and i was like seriously i know what you did if you just tell me hten i won't be mad and he never answered me and its been a week. He texted his best friend a second after i i texted him and told him and was yelling at him for it. I don't want him back..but i want him to want me back. like i can't just move on..i had no closure through the whole thing. but i think im gunna end up seeing him at the gym tonight. and its gunna be mad awkward. but like..what can i do to make him want me back? Like just act happy and? idk. lifes confusing. and why do you think he didn't answer me? i think i deserve the respect to get the truth. do you think its cuz he don't cares? which is weird cuz he yelled at his friend or do you think he's just guilty or what ??