Inconsistent

Why are so many guys inconsistent and don’t want commitment??? How are they gonna talk to you and say they “ miss you” and are “ sexually attracted and all around attracted to you” but won’t text you back takes forever to reply replies half the time with haha or lol or hahah okay. This dude keeps messing with my head and all I want is answers and guys it’s so hard to just end it after 1 n half. I have no commitment and I wanna move on. He promised me and I promised him if we decided to talk to other people we would tell each other but honestly I don’t feel like he deserves to know if I do move on.. with the way he’s hurt me and always cancels on me and bearly texts me. I mean I’ll text him good morning and he’ll just ignore that and go into something else. It’s not a big deal but ya know sometimes it’s the little things. This was our last text yesterday evening and he watched my snap story but doesn’t reply. It’s just irritating and I feel like now I’m just a convenience to him when he wants sex bc he said this to me a few days ago. I know what some of you girls are gonna say.. I know I deserve better but its kinda hard bc I feel like my childhood issues interfere with my love life.. whole abandonment issues and inconsistency in my life I feel like has really ruined me and now that I have a guy who somewhat gives me reassurance always rips it away. The one thing that really hurts is he always says he wants to see me but 98% of the time he will cancel on me the day of.