If you love something let it go?

I don't know how to do this the right way. I still don't understand how you could so easly walk away from me and just move on. Having thouhgt that you did still love me I dont understand why you would one day be all like oh thats right I hate having a boyfriend. Fuck you!!! I hate that you hurt me, and I hate that I let you hurt me. I was find before you walked into my life.