<human>: Can you succinctly summarize the text in 1-3 sentences?

So, I won't lie. I have been, and am, drinking. 

I had a 6 month relationship with a girl. She may have been the first girl I've fallen in love with in 4 years, since my heart was last broken. We broke up about a 2 months ago. The main reason for our relationships end was unwilling to commit, most out of fear of being seriously hurt when the relationship would inevitably end, or because I feared I got into a long relationship I would ruin the progress I had made with myself, which I now fear has been totally destroyed. 

We rekindled our relationship about 2 weeks ago. Things have been emotional but pretty positive. She told me she loved me, I told her I loved her, and I thought we could just move forward and put the whole episode behind us. 

She originally told me they just slept together and she never spoke to him again after a few days. Then they were in a fling. Then they were more then friends. Now she needs to go over there in person to tell him its over, after I picked her up to hang out for the night. I've been essentially demanding for days that she end her quasi relationship and flirtation with this person and I am tired of waiting. Now she's been there for close to an 2 hours. 

I can't stand the lies and trickle truth. my trust in her is essentially broken, the end to the relationship was mostly my fault. I don't think she loves me. I think she's a liar who seeks to use me for close companionship. I can't trust her. I've skipped a lot of detail but wtf am I doing?
<bot>: I can't trust her for reasons that may or may not be reasonable. Is a relationship a waste of time and emotion?