I've been eating out a woman from my gym who won't touch me back and I think I like it that way

So there's this woman at my gym, Priya, she's like 30. We're not really friends, more like we always end up on treadmills next to each other and started chatting. A few months ago we grabbed smoothies after a session and somehow the conversation got really personal really fast. She started telling me about how she has this thing where she cums super quick during sex, like within a couple minutes, and then everything gets so sensitive it almost hurts and she completely loses interest. She said guys get annoyed because they feel like she's done with them before they've even started, and she tried hooking up with women but she has zero desire to go down on a girl or do anything back so they lose patience too. She was venting about it like she was genuinely frustrated (not the word, I mean like actually upset about it) and I just felt bad for her.

I don't even know how it happened exactly but we went back to her apartment and I ended up going down on her. I'd never done anything with a girl before. Like ever. I always considered myself completely straight and I still kinda do? Idk. But she sat on the edge of her bed and I got on my knees and just did it and she came in like two minutes and that was it for her. She just kinda laid back and caught her breath and said "fuck, thank you" and I was SO wet from doing it. Like embarrassingly wet.

So now it's been happening for about two months. I go to her place maybe twice a week after the gym. Mostly she wants me to lick her ass (which I never in a million years thought I would do but here I am) and rub her clit at the same time. She finishes fast every single time and I've gotten really good at reading exactly what she needs, like the pressure and the speed and where to put my tongue.

But the thing that's been changing is she's gotten way more... dominant? Like it started as just me going down on her but now she'll have me kiss her thighs first, or press my face into her ass and just hold me there, or she'll put her foot up and tell me to kiss it. Last week she had me suck her toes while I rubbed her and the sound she made when she came was so hot I almost came myself without touching anything.

She never does anything back to me. Not once. After she finishes she usually just lays there for a minute, says something like "you're so good at that" and then we talk for a bit and I leave. I go home and get myself off thinking about the whole thing and it's the hardest I've ever cum in my life, every single time. Something about giving her exactly what she wants and getting nothing back does something to me that I don't fully understand yet (but I'm not complaining lol).

I'm so nervous posting this, I keep almost deleting it. None of my friends would understand. They'd either think it's weird or try to tell me I'm being used but it doesn't feel like that at all, it just feels like this little secret thing we have and I love every part of it.