bf liking girls pictures

my boyfriend and i haven't had any issues before except one time i saw him look at a girls ass right in front of me... recently i looked at the instagram "liked" feed and he had liked four of some girls pictures, all in a bathing suit, yeti butt pic, etc. i talked to him about it and he seemed genuinely sorry. however, still feeling upset, i did some more creeping. and he's been liking tons of girls bikini pics. he hasn't done anything since the convo though. also, literally out of the 600 people he follow at least 90% of them are girls... i don't know how to feel, i don't want to overreact especially after he apologized but it really hurts my feelings....... what do yall think?