My boyfriends roommate is ruining our relationship. Help?

We share a house so I can escape him. But his roommate is always with us. Even comes out to dinner with us now. He works with his roommate so he spends all day with him. But now at home they play video games together from the time my boyfriend gets off work until bed time. I never get to hangout with him anymore and I barely get to be alone with him anymore. It's irritating.
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I've told him about this. He suggested we move the Xbox back up to our room but his roommate enjoys playing the game my bad does on it. And if I suddenly switch it up there he's going to know it's cause of me and I feel like that'll make things awkward with living with him
My boyfriends roommate is ruining our relationship. Help?
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