I agree with Kate. And it’s over.
If you had written us months ago, I would have suggested spending more time with her, really listening to her and making an effort with her, going to counseling, making date nights a regular thing.
What you have done is: get a haircut, book some tattoos and work out and eat well for a week. You booked a date and did some chores around the house. How is that going to help your marriage? How does that make her feel closer to you? You are focusing on you, and it seems you’ve just come to the realization that she’s checked out.
Stop the quick makeover and actually tell her how you feel and maybe consider counseling. But I think it sounds like she is done.