Just found out my partner has been lying to me about his fertility

My partner and I have been ttc, we/I thought this month would be our month, but he finally tells me the truth and told me he was purposely trying to decrease or put a stop to his fertility by taking some form of a pill he found online. After hearing and seeing me cry, pray for this, blame myself every month for not being able to conceive, and today he tells me this. Ladies and gentleman, I think I may officially be done with this relationship. Knowing how badly I’ve wanted a family of my own, knowing my goals. And still does this to me. I feel so betrayed and hurt. Having me play mommy to the kids he has with other women who he has cheated on me with, but not willing to give me my own. I’ve been stabbed in my back before but not like this. I am devastated right now. I’m hurt. Confused. Please do not invalidate my feelings or tell my I’m over reacting. I’m not. I’ve been stressing and tearing my hair out thinking something might be wrong with me and that’s why we haven’t been conceiving. He’s been lying to me. Putting on a fake smile in my face pretending and telling me he wanted the same thing. I am absolutely sick to my stomach and I feel like I want to die. This isn’t right. Men do not understand what they do sometimes. I have done nothing nearly as bad to this man to deserve this. I have stood by him at his lower, treated his one daughter that lives with us like she is my own while enduring such negativity from her parents and him allowing the mother of this child to disrespect me whenever she feels like it, so he “doesn’t lose his child”. I’ve had it. I have to leave before my sadness and hurt turns into something more. I should’ve listened to the signs god stood right in front of my eyes, I was blinded by his words. Him cheating on me does not even compare to this. He could cheat a million times, I’d take that over someone lying to me about something I am so sensitive about. I have conveyed to him so many times how much infertility and pregnancy complications make me so anxiety ridden and afraid. My hair has been thinning, I’ve been losing weight. All because I’ve been stressing about if my fertility may not be okay. The best part? He tells me this news, leaves the room in silence, and starts watching comedy tik tok videos with zero remorse. How happy of a life