I feel I've reached breaking point and cannot go on.
I'm 18 and, over the summer, became embroiled in an affair with a much older man, who was once my teacher.
I'm racked by guilt because of his child - but not his wife, wrong as that may be.
I despise her because she has him and there is nothing I can do about it.
So I suggest that, having broken it off, you henceforth avoid all contact with the young man.