Should I be worried?

Melissa

My husband of 3 years has been acting very emotionally distant lately and never a seems to really be with me when we're at home together and our sex life has been non existent. Last week I grabbed his phone to text a friend about plans for the following day - my phone was dead- and he freaked out and grabbed it from me and got very defensive about it, this has never happened before. I questioned him about it and we both ended up just shrugging it off. A few days after that I was helping him download an app and I saw his recent google search history and it was Iskra Lawrence. I searched her later and only saw tons of lingerie pictures. We had an argument about it when I asked him about it and he said it's just harmless fun, men have fantasies and it's normal. But this coupled with the fact that he has been so distant and unsexual has me really worried, am I overreacting?