<human>: Summarize the given text in a few sentences.

We've been living together almost a year, been dating a year and a half. At the end of November I [F37] said some hurtful things. He [M35] never stops me or challenges me when I do something like this, his therapist says he doesn't establish boundaries. I apologised for the things I said a billion different ways. I was genuinely sorry. He seemed to accept the apology at the time.

He has never really forgiven me, it turns out. He started building a case against our relationship in his heart, assuming that I have been unhappy when I have not been, deciding that I am too cruel, and as of yesterday tells me he is leaving in two months at the end of our lease and wants a different life. 

I'm a thick-skulled idiot. I don't always know when I'm being thoughtless to the point of being harsh, and like I said, he never tells me to stop or shut up or anything. In the last year and a half I have been "cruel" that I know of three or four times. I was venting about things and he seemed ok with what I was saying and how I was saying it by his attentive silence.

I don't want him to go. I never meant to be frustrated and harsh about anything to do with his life. I never called him names or told him he was worthless, but he is sensitive and took things that way sometimes I have learned.  Daily, I am telling him how wonderful he is. I never go a day without telling him I love him and showing affection. But our relationship is now too "hard" for him. I am willing to see any therapist he chooses to learn better communication skills. I am willing to do what it takes but he is tired. After having a few vacation days to himself he became sure he wanted to live alone again. Is there any good way to make him less "tired" of us? He says he still loves me.
<bot>: Said dumb things a few times, he is now bitter with me and leaving. I show him love daily and want to keep him.