Guys of reddit, what did your girlfriends Dad do to establish dominance?

Showed me his gun collection... said if I ever cheated on her, he knows where I live and which room is mine.

8 years later she cheated on ME. so I sent him a letter (by snail mail) that mentioned the times that

1) We had sex in their parents bed

2) We had sex in her parents bathtub

3) We had sex in his shed (which housed the guns)

4) The time she decided to go 3 states north of where I lived with my Aunt's Ex Boyfriend (they dated for 10 years, my grandmother lets him stay at her house because he gives her weed) for 3 days without a phone and she never did tell me what she did. (Cheated later, so likely cheated then)

5) The time when she feigned sickness so that she wouldn't have to go to Disney World with the family for a week, I flew into town a few hours after her parents left, I was on the plane out a few hours before they came home. Guess what we did.

I am sure he got the letter because my ex no longer tried to be my friend. I am still alive, I feel in the end MY dominance was established.

/r/AskReddit Thread