This is just me venting, but also hope that the right lady sees this.
I have found out today that my ex step dad has left his wife for his first ever girlfriend, now this may seem an odd thing to post about so here is the history.
My mum met stepdad when i was 5, they got together and had my 2 younger sisters within 2 years, they were together for 15 yrs, turns out in 2004 that he had been having an affair for 14years!
No one could believe it, he was the sweetest, most helpful, kindest man you could meet, but yes one day he just packed his stuff up and got the other woman to pick him up and moved out leaving my mum to have a breakdown which she still hasn't recovered from.
He gets married to this woman after her husband died early from an illness (nice!) and sets up a whole new life, new job, new friends etc it was bizzare tbh.
He avoided his responsibility towards his children until it became apparent that my siblings couldn't live with mum as she was in and out of MH hospital being sectioned and generally not well, so him and the new woman had to take in my siblings which he clearly wasn't happy about and didn't think would happen.
He has now kicked my siblings out of his shared home with their step mum and has left her and them to run off miles away to be with his first ever girlfriend 
all i know is that she lives in Dorset and has children.
If Dorset lady is reading this, Run.A.F*ing.Mile love, he is a no good charmer who will take what you have and then move on when he gets bored, it isn't you that he wants, it is your money and the excitment of something new.
He is basically pathetic and worthless, the world would be better off without him and i am sure there is no woman who deserves a shit like him.