Brehette there's a point when a man can have so much money that the money begins to multiply itself without much meddling from the individual. In the book titled
Rich Dar Poor Dad, this is called: "Having the money work for you" as opposed to "working for money". In fact this is the point in time that a lot of men want to get to after working hard for a chunk of their lives.
This is also the point when as a rich dude you finally have the time to appreciate the other aspects of life instead of having to "build". After all you've got enough money for all your needs, no matter how expensive (health-wise). This is where Will appears to have been at.
Also, you said that when you're with a person you "...
want to do things for them and with them". Homegirl never said she tried to take Will to places X and Y! Or even that she got him any gifts. Her story woulda been mad different if she her gripe came at the fact that she invited him to several places only to be turned down. She'd even have a reason to be angry if she bought him gifts and he didn't reciprocate. But that wasn't the issue as she put it.
Instead it sound like she was waiting for him to make the move first, which really translates to her "...
wanting him to do things for her and with her". Will wasn't about that life for obvious reasons; netflix, cooking meals and spending time together without worrying about the bill was his view of a good time with her.
All in all I agree with you tho', they both wanted different things out of life.
She just ain't shyt for being "upset".