what do you guys think

Ok so my boyfriend always likes other girls pictures on Instagram Facebook Twitter etc and every time I see that it hurts me inside it crushes my confidence and makes me feel self conscious because these girls have a nicer body bigger boobs prettier face etc and I've asked him why he does it and he lies to me and says "I don't" and I've proved to him that he does by showing him all of the pictures he's liked and I've told him before that I hate when he does that and I've explained to him why and he still does it it's like he doesn't give a shit about my feelings and it's really upsetting me and I don't know what to do. Some of the pictures are below