http://www.telegraph.co.uk/women/sex/10579798/My-wifes-male-best-friend-has-moved-in-with-us-and-he-wont-leave.-Help.html

Highlights:

She changed her job and ended up working away where she met up with a male best friend. When she got home, he arrived as well as, his visa had expired and needed somewhere to stay for a couple of nights. That is now two months ago and he is still here. My wife said that she has changed her mind about kids. She has concerns about the age difference between us.

Yeah, because she doesn't want to have kids with a dude who is afraid of asking another man to leave his house after he's been mooching for 2 months.

I am 99% convinced that there is nothing going on between them

Haha.