Ah another "IM A PROVIDER!" power simp.
You can do all that shyt and if she's bored she's still leaving. Some of the wealthiest and most successful men on earth are--say it with me now-- DEEE VOOORCED.
If a woman wants to leave, she'll leave. Unless you're a Muslim stereotype and just beat and threaten your wife constantly because you're so afraid of how you'll be perceived by other people for "letting" your girl leave you. At a certain point it stops being about her, and being about you and how scared you are of taking an L to the point where like other men do, you kill your wife on some "if I can't have you nobody can" shyt.
If your relationship isn't transactional ("b-b-but I pay for everything

") she's bringing money into your house, she's bringing laughter and knowledge into your house, and she's backing you up if you do fall and staying devoted to what you two built together since she has a stake in it.