<human>: I don't know what to do. I feel helpless and hopeless and scared. This wasn't supposed to end like this. When people promise things...Why don't they mean them? Why is it so easy for a guy to tell you that they want to be with you and then change suddenly? After the first break up for two months, he comes back to you and tells you he knows that he wants you. That he wants children with you and tells you what he wants to name them. Tells you that he is 100% sure with no doubt that he wants to marry you. Then after 6 months back together, he convinces you that he wants to move in with you.That this was the first step to "our future." 

And then 4 months later he says "promises are broken all the time." That he changed his mind. I sacrificed my relationship with my family knowing that they didn't like him. Knowing that in moving out, I might lose them. He said he would be my support and my "family." I believed him.... But love makes you do stupid things. Looking into a guy's eyes and believing his words...his "no-doubt" tone. And then they fail you. "Relationships are hard work" and "love takes effort" and "It's too hard." You feel disposable...like an experiment gone wrong. He doesn't cry and he doesn't feel. He's like a child that doesn't want responsibility and got bored of his toy. You feel confused because two nights before he made love to you and and last night he told you he loved you. Hearing that he "might change his mind" and is "unsure" of whether this is the right decision makes everything worse...

What could I have done to make it better? Why do I feel unlovable? And not worth the "hassle?"

Can you condense the text into a few key points?
<bot>: I broke up with my live-in bf and the above is a rant of sorts. I'm feeling a lot of pain, disappointment and I don't know how to deal with a relationship gone wrong again...