Lots of reasons.
Childhood trauma, being autistic, recurrent depression...
But at the moment, the most pressing issue is that I have now been stupid enough to enter into a relationship twice, and both times it has gone really badly. The first time the person broke up with me after roughly two months, and I was very suicidal when that happened. This time I am faced with having to end the relationship, as the person is emotionally abusive. I have been thinking of nothing but when and how exactly to ctb all weekend, but I haven't figured it out yet. Additionally, my boss will likely blame me for the end of the relationship, and I will then be at risk of losing my job. Being autistic, finding another job is hard. I have tried repeatedly to find a different job, but I am stuck in my current job. It is not a bad job, but I rely on the income and can't just give it up either. My boss has been bugging me about getting a boyfriend since January. I finally got one in August, and now on Wednesday she said to me that she was right in that I would find a boyfriend again. I said let's see how long it lasts, and she said I shouldn't say that. She belives in manifestation, so now that I have said that to her it is as if I have "manifested" or wished for the relationship to go badly. And on Wednesday night the abusive behaviour from my boyfriend started. So if I break up with him my boss will blame me for it, but I also can't in good conscience stay with him.