What should i do with "my friend"?

I've had this friend since I was maybe in 7th grade. From the start, he was a bit of a downer but I kinda ignored it cause he was someone who I could hang out with. Last year, he practically broke up me and my past girlfriend, and went out with her right after that. This year, he introduced me to a game which involves vandalizing people's houses for fun. We got caught, and he just shrugged it off while I repaired the damages. This kid hates to do anything but play videogames, and I have other friends. So NS, what should I do?