Don't really know what to make of this

Get texted from Tinder around 11pm last night. Pretty woman, bit older than me. Exchange a few texts and she invites me over. No pretense except a neck massage.

After a bit, i make my way over. I get there and go direct to her apartment - she doesn't even meet me in the lobby. Spidey sense is going off and i've got my guard up preparing to run if the door opens to a bunch of dudes. But it doesn't. She opens it as i walk up and lets me in. She's as pretty as the pictures, wearing a white robe. Body seems a bit thick but not too much. She's already poured the wine glasses.

We sit on the couch and chat. To be honest, i'm a bit nervous. She asks if i've been with someone her age, i say no. She's been with someone my age, but no younger. We engage in some light conversation. She's encouraging me to go further - i asked if i could feel her hair, she said i can feel more than that if i want.

Eventually i start to fulfill the visit's pretense and give her a neck massage. She says i can slowly work my way down, which i do. I say maybe we should lay down. She turns to kiss me for the first time.

We start making out. Eventually, though, she gets weird about it. She asks what that noise is (normal kissing noises). At one point she laughs, i ask what is it, and she says "nothing, just got flashbacks". At some point she starts turning her head to the side. I think she just wants neck kisses, but eventually i realize she's literally dodging the kisses. She asks me to kiss her breast, which i do. I start to finger her - she's encouraging it.

After some more of this, i stand up, prepared to lead her to the bedroom. As soon as i stand up, she tells me she's nauseous and she doesnt want to go further tonight. She keeps apologizing and im like its okay, but im visibly irritated. Keeps saying she's nauseous and this never happens. Eventually, she goes to the bathroom, comes out and says she threw up. Does it again in a bit. I go in the bathroom, no evident signs of vomit there, nor on her.

At this point i take my cue and leave. Texted her some random bs after, no response.

One of the most baffling tinder experiences i've had. No clue what to make of this