Is it me am i in the wrong ? ladies please respond

OK,

so my girlfriend found out about me watching porn and doing the business, now i love my gf to bits and the relationship is going fine shes gorgeous and i try and do everything that i can, i clean up, decorated her house, looked after her daughter made her meals, feed the cat, dog, parrot take the dog for a walk take the trash out etc and these are all my responsibilities coupled with other things.

Now some times when i try and get her to have sex she doesn't want to or she's too tired so i watch a clip on the net maybe once or twice a week sometimes i just watch and not masturbate, but she has a big problem with this saying that she won't have sex with me as i have my porn and that shes not good enough for me and that her bum isn't good enough for her etc. Thing is its not just the porn its everything shes doesnt even like me doing stuff on my car or giving the dog attention, i feel trapped like i can't do anything and am constantly tip toeing around her making sure i haven't said anything to upset her or offend her, i can't watch, talk to any other women as she gets really jealous, i can't watch any horror movies or ghost movies around her and she constantly is tracking pretty much my every move like some investigator and i've told her before that somethings are best left alone and not to interfere in man stuff.

i do love her alot as well as my stepdaughter.

what do i do am i wrong, we lead very busy lives and i drive to work and back which in all takes 4 hours in total 2 there 2 back starting at 6am in the morning and not returning till 7pm and then on my return its playing with the dog and make sure everyones fed etc.

thanks.