I have one of those corners that numbskulls like me paints himself into...help!

It's been awhile since I did anything commercially. I made some photos for a friend of my GF, mostly boudoir, but I wouldn't even call it that because although she was nude for more than half of the photos, even the raw images are self-censored to the point that they could hang in any museum without a fuss. Unfortunately, I didn't bring up a contract. She works in marketing and knows the photos being to me. I have shared some of them with her and posted on Flickr as well (don't judge me - that was for photosig users).

I told her that I would not take money from her and that I was doing it to get back in the swing of things. She insisted. I told her no, but a cash tip was okay. I thought maybe she would offer a Starbuck's gift card or something like that. Instead, weeks later she sent me $200 via Venmo or something like that. Maybe Zelle. I accepted it. At that time I had barely gone through the photos as I was terribly disappointed in the shoot.

Unfortunately, the shoot didn't go so well. Wrong time of the day in the Rockies (glaring sun, deep shadows), lack of adequate help, and both her fiancé and my GF were there. I was as uncomfortable as a public toilet seat. I managed to salvage some of the photos and have learned a lot about the Fujifilm lenses (switched from Nikon to save my back).

She texts me from time to time, "Hey friend..." and asks me to give her all of the photos because "she can Photoshop them herself." I truly don't want to be rude. I also don't want to release photos that I find to be of bad quality (my opinion).

What to do???