<human>: Total length of relationship: 10+ years

Length of romantic relationship: 7 years

I would get into why I'm unhappy, but I've actually posted about our relationship on Reddit before and have always gotten the collective "dump him" response. After much thought over the past couple weeks, I've decided that is indeed what I have to do if I want to be happy again.

I didn't want to do it today because I'm currently on a 6-day-long work-related trip and didn't want to do it over the phone, of course. I did talk to him though and we ended up fighting. He gets really intense when we fight. However, and this happens all too often, when he can tell I'm really fed up and ready to leave he goes all dream-boat on me. He reminds me why I love him, he's really sweet, he's all into fixing the problem, etc. Then I have second thoughts about leaving him.

I hate this because it feels like I'm manipulating him against my will to get what I want. I do honestly want to leave, but I just can't when he acts all sweet.

I've never had to break up with someone before and I don't know how to handle this. Please tell me what I can do to stay strong in my intentions.

Can you give me a shortened version of the text?
<bot>: I have a really dysfunctional relationship with my boyfriend and want to leave, but every time I'm about to break up with him he gets really sweet and wonderful and it keeps me from going through with it.