Is his behavior disturbing you and your boyfriend? Or are you concerned about the hub because you know he's going a bit nuts when you guys are together? Because it does make a bit of a difference. If its your privacy that's important, is there any way to have sex somewhere other then under the same roof as the hub? I'm assuming not or you would already be doing that. Is there any other place he can be when the BF comes over?
Take the risk of thinking for yourself, much more happiness, truth, beauty, and wisdom will come to you that way. - C. Hitchens
Me: Male, bi, 48, flexible