Well, i don't know how their relationship works, but at least he seems happy on the surface, and has someone to care for him and pander to his needs. Okay, they probably have an open relationship agreement or something like that so she can satisfy her sexual needs with chad (because let's be fair, i'm pretty sure this guy can barely get his dick hard due to health conditions, let alone fuck her), but let's be honest, when life has dealt you such a bad card, being a cuck is the smallest of his problems.
It isn't my cup of tea, but if he is happy with it, then i'm happy for him as well.