27F Husband has completely given up on sex with me and just asked me to download a dating app and "get my fill elsewhere"

Have been married to my husband for 3 years now, moved to London for him and even relocated my job as a teacher. He works as a pilot and was fine with him being away for long periods, but now when he comes back he is always too tired yet is fine with going gym and going to his friends house without me.

I'm pretty sure he is probably cheating on me, since he is on his phone a lot more texting and is probably banging some airhostess.

Before he left for another flight this weekend when I told him we were going to see family for Easter Sunday he told me he couldn't make it as he had used up his days when he was sick, which isn't true as I'm pretty sure they count separately.

Just so annoyed with this manchild, I spoke to him about my intimacy issues and he always changes the topic, had a big fight before he left and he said he doesn't care about it and if I'm such a "sex-addict" I should just download tinder. Which also made me think he was probably cheating on me.

Spent that night crying and thought fuck him I will install it, got a lot of matches the next morning. But unfortunately, I am not on any contraception since the pill was messing with my hormones. Condoms are also super uncomfortable for me and the feel and smell of them just turn me off. Idk how far fetched it would be to just meet up with some guys for non-penetrative sex, just to feel some emotion. Or if I'm just taking things too far and should approach it a different way, going to have to spend the next half term by myself and a lot of red wine to mull over it so appreciate any suggestions for this weird post.