Very little sex.. Is it him or me??

I need help, I don't know if something's wrong with me.. My boyfriend of over two years rarely has sex with me. I have recently discovered a massive collection of his p 0 r n. There are many links, tumblr pages and many many p 0 r n o g r a p h i c pictures (I'm talking over 5,000 not kidding). I'm very shy, modest and non-confrontational. I walk around the house almost completely nude, trying to get comfortable with my post-pregnancy body. He says I'm beautiful and sexy all the time, but the women he looks at make me feel otherwise. I'm a mere 5 feet 2 inches, before my baby I weighed 125, now after having baby I weigh roughly 140-150. I try to initiate sex but most times he ignores it or takes it jokingly, but I never turn him down. Every 28 days he rotates between day and night shift at his job. When he is on days, sex is occasional. When he is on nights it's rare. On average we have sex once a week (if I'm lucky). However, I notice him looking at his p 0 r n at least every other day. He tries to hide it from me and thinks he has, but I've caught glimpses of his phone screen, looking at p 0 r n while laying in bed next to me! When I notice him looking at it while I'm in bed with him, I try to initiate but am usually ignored.. I have even walked in on him "satisfying" himself. I just closed the door and walked back out because my feelings were hurt and he came looking for me pretending like nothing happened and I walked out for no reason. When we do have sex I ask him what he wants and his response is always either "I don't care" or "whatever you want". He seems like he prefers his p 0 r n over me and it hurts my feelings really bad and makes me feel as if I'm not good enough or something is wrong with me. =( what can I do??? Tweet