Urgent Sex Help Needed

So I just botched another lay with the girl from a previous post. I was in town and had been sexting her a bit this week for fun. I knew I was in, but didn't know if I wanted to bang her because she is almost 40 and a bit below my attractiveness standards. I told myself I would go to her place, and if I got a boner, I would go with it to work on my sex skills.

So I get there, and conversation is a bit stiff and she is really boring me. I am literally doing nothing, but she is playing with her hair and I know it's on. I tell her I can't stay long and blah blah resist first because I was unsure of what I wanted to do.

Anyway, I decided to escalate and get NO resistance. She is basically undressing herself and me. We get down to just panties and boxers and have been making out/humping for a bit. I feel something really wet between my legs and am like "alright! I have her super turned on!!"

But something feels off. Not much later, I go to the bathroom to pee and realized I jizzed in my boxers...WTF?? When I raw dogged her I didn't feel a thing. I figure my options are to play it cool, slow down and pull back, before fucking her, or straight up leaving.

I take my chances. Ingeniously, I turn my boxers a bit to the side so the damp spot is not visible. I start escalatng on her again, and she starts doing all this weird shit like saying she loves amrpits and sweat?? is that normal?? Its grossing me out and I can't get a boner. So I make up an excuse and leave.

I am dressed and she is a bit butthurt. Like "WTF you could have told me you were only staying a bit...this is so weird..you're a douche just running away." I just said, "OK, you're right" and grabbed my keys.

A bit later she texts me: "It was fun smooching I enjoyed seeing you. Thanks for stopping by." LOLLLLLLZZZ
Why the hell did that happen? Is that normal what do I do about it?

No bro, I think I straight-up jizzed and didn't feel it. I couldn't get my boner back either. It was really weird.
In any event, I'm done with that girl BTW

Dude one time I was eating in a restaurant and went use the bathroom. Not horny at all when I go to piss I came!! Wow don't know bro. One of life's mysteries?? Feedback?

perfectly normal to love armpits and sweeet...thats why i never use deodorants