I guess everyone’s different. It’s not uncommon for couples to live apart during the week if they work away or have to travel with work. It’s a big thing to ask him to move to London and give up everything - if she’s ok with him staying behind and he’s ok with her going then I guess it works for them. I’m not sure I could do it, pre covid I occasionally worked away but I couldn’t live apart from a partner all the time like they are and long term wise I’d want some sort of plan because I definitely couldn’t live like that forever