<human>: My friend has become a literal cuck, please help me save his life

>25 years old

>been in a relationship with a fat girl for the last 4+ years (she is the same age as him)

>she's really fucking fat and getting fatter every day

>so fat she can't have kids

>so fat she's having surgery on her knees

>doesn't let him visit family, answer questions, make decisions etc on his own

>he pays the rent and bills

>she gets a taxi to uni

>he walks 1 hour and 20 minutes to work

>their rented flat has no furniture

>says it's because he's spending all his money on her

>he's paying for her uni education since she has dropped out of 2 courses (£27,000 for 3 years)

>he pays for her to go on holiday to New York, Australia etc (without him)

>she threatens to leave him occasionally

>she doesn't do washing up or cooking either

>all they eat is cereal and soup

>she is a Buddhist

>buying a dog that he will also have to pay for

>his sister has told him that her skinny friend is into him but he isn't interested

>near impossible to get him on his own

>when separated from her he is in constant contact with her over the phone

>his mother is being evicted from her home and he won't help, doesn't seem to care

Obviously it's been said that he's fucking idiot but it has no effect on him

Summarize the given text in a few sentences.
<bot>: How can I help him out of this unfair relationship? It's been going on for so long and he won't listen to reason