Anyone who's been in this position knows what's going on here. I'm afraid those who haven't will have a hard time relating. Sooner or later, though, I think everyone finds themselves right there, on one side or another.
It SEEMS bad/negative, but it can also be how some couples are. She DID give him a kiss though, so it's not like she is completely blowing it off. But doesn't seem like it is panning out how Christo pictured.
Back when we were together, my ex-girlfriend snuck into my parent's house the night after I got back from showing at a county fair in Washington State, in the hopes we were going to get frisky in my bedroom. I remember waking up to her crawling on top of me in my bed, when she sticks her hands under my shirt, rubs my chest, and asks if I wanted to "have fun". I responded by rolling over (which made her fall off the bed) and going right back to sleep.
To this day, I regret that decision. Because I learned, if you don't keep your girl happy, somebody else will!
Shit, Hank, sounds like you should be happy about that decision. If something as simple as being too tired to screw makes a girl cheat, she sounds like dirty trash and you're better off without her stinking up your house.