Actually, I like Tata the best out of the current roster of waifus, hahaha.
It's been so long since her arc so I hardly remember, so there could be mistakes, but my take is this: Put yourself in the shoes of the Town Lord who's obsessed over her. He wanted her to belong to him, and laid a trap to that end. She instead chose to belong to "everyone" and at the same time to "no one" by selling herself at a brothel. How would you feel? Now put yourself in Tata's shoes: It may be that as a young lady, from a poor family in a medieval setting, she didn't any other qualifications to try to get the money in some other way. It must have been a very hard decision, but she didn't have much choice, if she wanted to keep her freedom (really, you shouldn't underestimate the value of freedom)
The Lord didn't see it coming, and his plan failed. Sure, he laid with her, and that must have given him a drug-like high. He felt he won, but once that high went out, he found himself in the reality that actually, she didn't belong to him anymore than she belonged to any other low class man who could afford a night pass. And that was the plot of the arc... he still pursued her, and to his very end, he didn't get her. A somewhat bittersweet win for the little helpless girl, but a win nonetheless. And a perfect middlefinger to that asshole Town Lord.
And to wrap things up, here comes Wazu, accepting her with all her baggage, to turn her bittersweet win, into a full sweet one. Sure, the misunderstanding at the end made them be apart to a comedic effect, but it's clear that she has a different world view now; she's happy while seeking her loved one. Now is her time to "pursue", instead of "being pursued".
Sorry for the long read, I didn't realize I wrote so many words! While it is true that the writing on this manga isn't top level, to me is fun enough to have a good time, and maybe my insight could somehow soften your view on my favorite waifu.
Tata best girl!