Heartbreaking to be with someone who doesn’t want the same as you..

So I’ve been with my boyfriend for 4 years. I always felt like i fell in love with him since day 1. He is 8 years younger than i am, hes 24. Although we do have an age difference, we both talked about it and decided age was just a number to us. I also have a daughter who is now 10, and hes always been ok with our situation. Ive always been there for him and what i now realize hes “somewhat” been there for me. We’ve definitely been through rough patches but we have over come them and are still together. Hes always known I wanted to grow my family and get married and i told him from the beginning that maybe we shouldn’t be together and just let it go, again because of our age difference, but he still chose to be with me and told me whatever happens, happens. Well 3 years into our relationship i started having uterine fibroids, ovarian cysts, and i have been diagnosed in cervical pre-cancer phase. My doctor told me that if i wanted to have kids, to try and have them now. I talked to my boyfriend about this and he didnt have anything to say to me. I was scared of even talking to him about it. We never spoke of it again. Well about 6 months later he finally told me he was just shocked and didnt know what to do or say to me. We have talked about getting married a few times and having kids but never really determined a “when”. Its been a year later and we recently got into an argument and i brought up how i felt about wanting a family and getting married and he came at me with “I dont want kids or to get married right now”. Not only that but i found out that hes been lying to me and hiding social media accounts from me too. He never communicates with me about anything, and if i try to talk to him about stuff, he doesnt listen to me. Hes literally fallen asleep to me telling him my feelings. He always expects me to fight for us and fix our relationship but i dont see him doing the same. Ive had some bad past relationships where ive been lied to and cheated on etc. I can be a bit unsecure, but Ive been alone and worked on myself for several years before getting into another relationship..HE being that relationship.. i was depressed before him and he helped me releive that depression. I was so happy and in love..so after giving love another try and thinking he was the one, he was the one that god sent me to finally be happy with, after everything we’ve been through and now this, I truly feel like Ive wasted 4 years with someone who I’ve always been there for and given him everything i have, been loyal to and dreamed of having a family with, i truly feel heartbroken, used, cheated and deceived. Ive been thinking of leaving him and moving out. I cant continue to be with someone who can lie to me and hide stuff from me after everything and then go and shatter what i thought were our future plans. I do want this relationship, i want him, i want us to get married and have more kids, but i also feel like thats never going to happen with him and its killing me. If i walk away now, i might just be able to have those babies and marriage I’ve been hoping to have with someone new. But my heart wants him.. i don’t know how to feel or what to do..

A few other details i should mention, he has two jobs and he’s always going to the gym, we hardly spend time together and when ever we argue, he leaves and does whatever like a single person. I also recently found a ring he was hiding in his dresser which he ended up telling me he found at little caesars and brought it home cause it might have been gold but after looking at it, he didn’t think much of it. Never mentioned it to me until i confronted him about it and now three weeks later, the ring is gone. I don’t know what to believe anymore. I feel like he’s talking to someone else but then he does stuff that makes me believe otherwise.