DB was with his partner for the last 6 years. She has been very successful career wise and earns a high salary and had her own house before they met. Despite working himself (he earns about half what his ex does) he just moved in and did not pay a single bill in the whole 6 years. He did buy some furniture occasionally but other than that she paid for everything.
She split up with him a few month ago and he is now back at our parents house. He could rent his own place but it has dawned after all his bills he wouldn't have much left. He actually would have more than many I think he is so use to have his whole wage he has got a shock.
Anyway with encouragement of my parents he has decided he is going to see a solicitor to get half of her house 
. I don't have a clue of the legalities and doubt he will get anywhere. I try not to get involved in it all but I'm getting daily phones calls from him and my parents about it. Which is driving me mad so I have stopped answering most of them.
I know this isn't actually any of my business so please don't start with them comments. I feel like I am forced to be involved when I actually want to say it's wrong. I suppose the only reason I am asking AIBU to think that way is when you thinking of other situations like when a cohabiting couple have children and the mother doesn't work/contribute financial to the house. I certainly wouldn't feel the same in that circumstance.