While I have been off at university, my brother (lets call him Dave) had been at home with our mother whilst working a lot. He had a girlfriend, whom we shall call Katy. Katy was around 5 years younger than my 23 year old brother, he was notorious for being a bad sort of guy in school, getting "excluded" (time away from school), but the girls loved him, even to this day he would have girls chatting him up and talking to him, he didn't really care for them though, he would bang and leave them. He has been this way forever, pretty much been using RP naturally.

About a year ago he wanted to get into a LTR with one of the girls from his work who was really into him. It went all tits up, I gave him advice on what to do, but he would always take our mother's advice over mine. I haven't even met Katy, I just know the kind of girl she is. She would be manipulative, offering sex if he went round hers early from a night out; amongst other things. He was always a BP guy in a relationship, he would always choose the girl over his friends; always do things for the girl no matter the inconvenience.

The relationship is going to shit and Dave knows it. He can't figure it out though; meanwhile, there are other blatantly interested girls waiting for him and chatting him up (without Katy's Knowledge). Katy breaks off the relationship and my brother goes all BP on this and tries to talk to her see what went wrong. She ignores him.

I go home for a bit over this Easter, and end up talking to him about it. I tell him to ignore this girl, to "pile her off" (an expression used to just "not care" any more and forget the person), my mother chimes in and convinces Dave talk to the girl. Eventually I give in and say whatever because he always just takes her advice anyway.....BUT ...but.... this time he doesn't; he piles her off and gets back to his new job (which also pays a lot more than the job where he worked at with Katy) and stories start floating about how he banged some of the girls where Katy works, he did. No more than a week later, guess who calls him and texts him wanting to "talk" and "try again" because she misses him so much?

My own eyes just lit up because I hadn't considered TRP in this situation, boy was I wrong.....

Realising this, I whispered the words that would plant the RP seed .... "Wow, you showed her utmost affection when she was with you... and she wanted to break up? Now you show you don't care for her and are banging other girls whilst getting paid good money....she wants you back? That is strange...."

TL;DR: RP brother turns BP when in LTR, I set in motion his way to RP theory.