Before my husbands divorce was finalized and they were just separated he paid for half of everything like your bf is doing.
But when it was finalized, she got the house and everything in it in exchange for him not paying alimony.
But he did pay half mortgage and repairs and stuff for about a year and a half until it was settled on. But that was okay, because his name was on the house, so if it ended up being sold, he wanted it in nice condition. But she just refinanced into her own name and he now only pays child support.

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