Relationships have a nasty habit of reversing themselves; whatever has been done to you in a previous involvement you'll do to the next person you're involved with, if you get half a chance.
Marianne FaithfullI was told that I had very likely been clinically depressed for a long, long time, probably since I was 15, or even 14. It explained, to me at least, a lot of my behaviour over the years.
Marianne Faithfull