What does he mean by this?

This is what he said after I apologized about being on him about his job and being snippy and that I wouldn't do it again.

Its not just the shit from this weekend I just haven't said anything because I thought i could deal with it but I can't I understand that I piss you off but when I try to give you a kiss goodbye and tell you I love you to go kill myself out there i guess that was just my breaking point I just need some time to myself to figure out what I want in my life and I hope you can understand that.

What does this mean? I asked him if it meant we are breaking up and he said he didn't know yet.

What does he mean by this?
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