How do you handle a practically sexless relationship?!

Seriously so sick of my bf not wanting sex. And sick of masturbating feeling like I’m single. It’s been over a month since we’ve had sex maybe longer and a few days ago I told him I was off my period and he groaned like he was upset. First of all wtf. Then two days later today I was feeling down because of this and he kept asking me what I wanted to make me feel better “a trip to Europe? Ice cream?” and I said sex and he showed no interest what so ever and just laughed at me. I was furious and told him that I was unhappy about all of this. He angrily said if I ever feel like cheating to be sure to tell him first. I said I don’t want another man (he KNOWS this) but it feels like our relationship is dead. What does he do? Goes to bed. I know he’s not cheating on me. But this is killing me :( and it’s been going on for months and months. I’ve had plenty of conversations with him about how I’m feeling. And no I don’t beg or force, thanks.