Don't stop the body rock

I'm afraid to admit this but I don't know how to have fun with my fiancé. Actually its more scary to realize this then to admit it. Don't get me wrong, we have fun from time to time. But when I get off work and got that itch to wild out my fiancé is not the first to come to my mind. A matter fact when I think of involving her I lose my enthusiasm. I'm pretty sure this is normal. Mostly because the best fun I ever have is with my cousin (we grew up together). Sadly I moved away from home (far away) so now our fun times come few and far between.
So what should I do? Get some new male friends. But at the risk of taking another man out on date, I refrain from asking another guy to hang out and play video games (I don't even have a second controller). So I'm waiting for another male companion to naturally happen. Hang out in a group for awhile, see if we would gell or even like the same sports team. But how the hell do I get a group of people together when I can't even get one person to hangout with?