Does the heart always win?

Im going to be so honest. Right now, I feel like ive lost myself in something. My past relationship, that still seems so crazy and present. I guess this is why people dont stay friends with ex's. There is a huge part of me that dosnt know If I can walk away, Then theres a massive part that wants too.
Right now, hes not talking to me. To be honest, over something so ridiculous. Something that couldve been sorted over a few hours of space, then talking about it. Typical. He walks away, or wont text or talk to me whenever we get into an argument or have a disagreement. His reason is because "This is how I deal with things" , well what about me? Do I not matter? I deal with things then and there, Im willing to compromise, go away for a few hours, maybe a night, not a few days- a week. Thats ridiculous. I tell him it kills me, and he dosnt care. So Im forced to give him space because he just flat out ignores me (great feeling btw), and I lose all power. I lose all sense of control. Including within myself. I turn into a physco. I feel like a mad stalker. And what the fuck head, thats not me. Never has been, never will be. I took a chance on him. I really did. And when it feels like someones taking advantage of that huge chance that you gave them, it really makes you feel small and will affect who I take a chance on in the future. I show my love I feel, more so then he does. How important is it for someone to feel loved? I feel it is quite important. To be honest, I never saw myself as someone, someone might love. I also didnt see myself as capable of loving anyone. I thought the damage ive experienced may well ruin things. Maybe thats becoming apparent. However, im kind of tired taking the blame and being so hard on myself. I loved 100%. I really did. For probs the first time too. So yeah, that makes things harder. If he dosnt recongnise that , or appreciate that, then Im not really the one with the issues right? Not that one then, thats his. Blame game? Nope. Honesty? Yup. Im exhausted. Im tired of always feeling like im the bad guy. At the end of the day, I feel like my love is being wasted. I also feel unprotected. Even on a friends level. I have abandonment issues. Flat out. He knows this. And when he walks away, or dosnt talk to me, it triggers those issues. Yet he still wont make an effort to not make me feel that way? He wont protect me from having those feelings? Who does that.
I dont want to lose him, But its more important for me not to lose myself.