Husband problems

My husband and I have had a huge decrease in intimacy since our daughter has been born. Since the second half of my pregnancy he “felt weird” having sex because “his daughter was in there”. Now she’s 10.5 months old and we’ve had sex twice since she’s been born. Sure life is busy, we are both very busy with work, the baby takes a lot of our attention and we are often exhausted by the time we get into bed (she sleeps with us still). But there are ways to still be intimate. For instance, tonight he said his back hurts so I said I’d give him a massage with a happy ending (I know its so corny but hey, I’m trying lol) and he said “yea sure let’s just start with the massage” like he has no desire or interest. I know I gained weight from having our daughter and I m not in the shape I used to be. I also looked at his phone tonight for the first time in forever and see that he’s been looking at porn and has a bunch of hidden pictures from a local escort page. We’ve been through this before and I honestly don’t think he’s having sex with them, he just loves the thrill looking at that shit. I didn’t mention anything to him cause it’s nothing new honestly. I just don’t know how to make him more attracted to me. Idk if he’s on these sites cause he’s not attracted to me, or because our intimate life is dead right now due to stressful life/ baby duties etc. Has anyone else been through this or have some advice? Thanks!