Selfish??

So my fiancé called me selfish today because I asked him if it would be okay if I had some "alone time" (basically I wanted to masturbate) tonight once our kids were in bed for the first time in almost a year.

Now, I'm not into period sex, it hurts like hell. I'm okay with touching while on though (I use a divacup so no mess, yay).

Anyway he turned around and said I was a selfish bitch, we're supposed to be trying for another baby etc.

I'm sorry but he masterbates EVERY DAY. Yes we are supposed to be ttc yet I'm lucky if I get sex once a month!! I dont care that he watches porn, I watch porn, yet I'm left every day with 2 kids after school time for an hour to an hour and a half, while he goes and knocks one out, yet I'm the selfish one??

Please tell me I'm not over reacting by being angry.