I've noticed this for the past year now, my sex drive definitely had gotten worse since my last child 18 months ago and have gained a lot of weight, I have had 2 c sections and have a bit of an apron tummy, it's affected my self esteem and I don't like DH seeing me naked with the lights on.
Anyway the last few months he has been initiating sex every week or so (only when he is really horny and frustrated) and gets a bit angry if I refuse. He knows I'm self conscious but doesn't seem to care.
It's like he just wants to scratch an itch, for a couple of days up until we have sex he is very attentive and loving then the minute we do it he turns cold and shows me very little affection and acts like he doesn't want anything to do with me, then a few days later he's really loving and affectionate again. It's really playing with my mind.
It's like those people who watch weird porn when they're horny then get disgusted by themselves afterwards, I have been thinking about it all night and I'm really hurt. It's like he finds me repulsive straight after having his needs met.