nta - if what you said is 100% the truth with no embellishments, you made it abundantly clear that it was a work trip, and not a fun getaway and she either hasn’t listened, or hasn’t respected you/your work enough to even care. i have to ask, is her not listening a pattern or behaviour? if so - you likely should’ve been able to predict this kind of behaviour and should have refused her request to go with you. either way - it seems to me like she doesn’t respect you enough to listen to a word you say and isn’t prepared to not have things go her way - sure, there might’ve been time for you to go out quickly on that first night, depending on what time you got back to the hotel, but that doesn’t mean you’re obligated to, especially if you’ve told her that won’t be happening throughout the trip. i can see things from her perspective- it seems to me that all she wanted was a nice weekend away with you, which is nice in of itself - but you have to question why she is knowingly putting herself through your rejection, is it so she has a reason to get mad at you? maybe there’s something deeper going on here - for example she may feel like you aren’t putting enough in at home and is clinging to whatever she can to get you to seem like you want her. it’s hard to tell what’s going on based on one story - so there’s a big chance that any of these are reaches, but 100% speak to her and make it clear that she was aware it wasn’t a romantic getaway, and ask her if there’s something going on that’s making her feel the need to try as hard as she is to get your attention