feeling distant 😞

My husband is in the military and right now he's deployed, he came for a couple weeks  for vacation and he has just left for about twno weeks now. While he was here we were happy and all but the last couple of days he started talking about other girls, like fitness models he follows on social media, he started talking to me about his ex that he did a lot of sexual things with and that she recently started following him on social media, he wouldn't stop talking about her for about two days, he would bring her up in every conversation we had. He went to a coffee shop where the waitresses are dressed in loungrie and spent quiet a bit of time there and took pictures with the girls. He bought a calendar from them, the girls are posing in loungrie in the calendar. And he wouldn't stop talking about a blonde that was there. He even talked about her when we were in bed together and I was trying to be a little naughty, he brought her up . I do get jealous when someone try's flirting with him but he always stops the flirting . This time it's different, I don't ever feel insecure but I'm starting to now, Iv always been confident about my body because I work out and maintain skinny, I have small boobs , I'm feeling insecure because he's talking about these girls and they do have everything I don't, they have big boobs and a thicker body over all, I consider myself pretty but I'm feeling realy insecure. And I've been a little distant from him I just feel like I'm not enough for him anymoreÂ