The OP has a roommate that is a gamer and spends all his time in his room
The OP doesn't want that room to be his "man cave" or whatever
OP has offered the following explanation for why they think they might be the AH:
I am wondering if I am the asshole because my roommate called me an asshole for refusing him to set up his stuff in my basement guest room/social area.
And the comments from other Redditors roll in...
He should have saved a down payment for his own place
Giving the friend notice
Trashing the rest of the place
What does the OP have to lose?
The OP added this edit later on as an extra detail he omitted in his story
I did mean to add that he flipped out on me when I explained why I was saying no and he stormed off calling ME an a-hole lol
The OP has been too good
Kicking him out
No is a good answer
He can't make decisions like that
Your house, your rules
OP's roommate probably believes he'll get away with his demand since they're are such "good friends" and he's already gotten away with things like making the OP clean up after him. Regretfully, OP says he's heard several friends express the same opinion about him sharing his home.
According to the OP, one of his faults is that he's too kind and he did mention that his roommate never pays his rent on time. Eventually, he was declared not the AH.