Am I overreacting

So me and my fiance had sex last night but before that he was at the bottom at the bed on his phone with his headphones on so I started to notice Everytime he moved or I moved he kinda hid his phone so I was looking at his phone and saw he was looking up the leaked things off the fanonly website so later last night but was bothering me so I asked him and at first he tried to deny it and make me think I'm crazy but then he finally came out and said I watched porn to get ready . And here I am like really you need porn to get ready to have sex so he says it didn't mean anything it was only one time and here I am with a face full of tear because my feelings are hurt and now I feel really unattractive like we were in the same room and you are at the bottom watching porn and half naked females on the internet talking about getting ready for sex .and when I noticed he was acting weird I also noticed he was very fidgety with his penis . So now I'm like am I that fucking ugly and not only that he is back to liking all these half naked females pages on Facebook which he is not supposed to have for a different situation we went through I just couldn't help but cry because if you did it this time how many other times did you do it idk I need for you girls to tell me am I overreacting or are my feelings valid