Should I stay or should I leave?

Uhm, leave him hun. He obviously doesn't want to commit to a relationship after his previous 4 year one. She ruined him for you, sorry. I know how you feel, 3 yrs and I found my boyfriend was a pig, real classic one too. I'd turn around and he'd start grabbin on other girls.. not very subtle, huh? But, he sounds like one of those friends with benefits guys, I'm sorry, but you need to end it.