I was giving advise to an acquaintance I ran into at my gym and I want y'alls opinion on what he should do.

Let's say his name is Bob.

Bob has been in this relationship for 4 years now and advised after the 2 year mark, he became BETA for argument sake (catering to her every need, always wanting to shit for her, etc).

Things have been rough for his relationship lately. She is 4 years older, no friends, has "depression", arguing with each other, (some red flags?) She also has pulled the "I want to be alone card, they're not compatible, she doesn't know about them being together anymore".

I read the texts and I cringed because she clearly now has the upper hand in the relationship at this point asking what she wants, what he can change, etc.

I have been on TRP for 1.5 years now and everyday is a journey however Bob seems to want to fix his relationship.

I advised him: ~ playing mr alpha all of a sudden might not work.
~Give her the space she wants and agree that she is right about not being compatible.. let her come to him. ~focus in your mission which you clearly gave up at the 2 year mark ~ there could potentially being another branch that she is getting ready to swing to (I explained it to him with NON TRP terminology)

TLDR: BETA dude/acquaintance at my gym is trying to hang on to his relationship which he does not have the upper hand in. What advise would you give him.