In my experience, if a woman loses an interest in being initimate physically (sex, cuddling, etc.), then she has lost interest in you. Being tired and busy is just an excuse. In fact, physical initmacy should be something that she looks forward to at the end of a long day. Sure you need to do your part and turn her on, but it's not really that hard - touch her in the right places, say the right things, and it should be easy-peasy. The sex won't always be good, but she at least will do her part.
I'm sorry to say it, but it looks like your relationship is more or less finished.
Posted via RS Mobile