HUMAN WITH A HEART

Is there anyone out there in a similar situation to me.
Im a 42 year old Mum. I feel like I just exist in a bubble trying to please people and getting know where.
Before you think this is a sob story, I am a positive , optimistic person but Im also realistic and realise Ive allowed my life to become like this.
I work full time in education which I really enjoy. I have 2 lovely daughters . My partner who also works full time spends most of the weekend either watching t.v, playing on the xbox or generally doing very little else. Hes a loving Dad but if I dont pay him enough attention he sulks and doesnt talk to me for weeks.
Yes you must think Im soft and a push over. Im not I just leave him to it. I just realised the other day Id got so used to this way of life its become the norm. I look forward to him going away on business or fishing trips just so I can be myself again .
Ive never had an affair and yet sometimes I think If the opportunity was there I would even though I know its wrong
Whats a girl to do?