Can I rant
I hear what you're sayin. I get the attitude when I do anything for myself or by myself. I don't spend enough time with her, or her son, in the week that I work 56 hours, do my school work to earn a degree to put me in a better job market to maintain pay and quality of life and then I have the outside house work to do. Lay it out for her man, tell her you don't appreciate being made to feel guilty for enjoying your hobby. Just the same as you don't, i assume, make her feel bad for enjoying her hobby, again assuming she has one. Shoot, maybe that's the problem, does she have a hobby of her own? or is she a vegtable in front of the tv watching teen mom reality crap?
Whatever you do, keep it civil, dont rush in poking the bear, 'cause you will get mauled.