My gf (f26) and I (nb23) entered our relationship thinking we'd never have sex (I identify on the asexual spectrum) but we ended up starting to have sex and that comes with sometimes wanting to spice things up. Recently my gf pulled out a set of lingerie to wear because she wanted to feel pretty, but I didn't react well because all the lingerie she owns is from a previous relationship where she was constantly sexually assaulted, groomed from a young age (about 15yo with a 30yo man) and bought sexual things because the man wanted to exploit her. When she wears it all I can think about is how this man bought her so much stuff she hasn't been able to wear it all, and about his intentions when he bought them, so it was a major turn off for me .

When we talked about it my gf said that she refuses to go through it or donate any of it because it was expensive and she never got to use it. We've talked about how it makes me uncomfortable to see her wear, so she said she would just wear it herself or wear it out for an evening or something. It makes me uncomfortable that she would wear lingerie out without me but I know I wouldn't feel comfortable going out with her in it either. It feels like the monitary value of the lingerie her ex bought her outweighs the emotions they stir in me when I see them.

Just seeing the two giant plastic totes if lingerie she's been bought but never even been able to wear makes me feel sick sometimes. Thinking about the intention behind the clothes and that I feel not important enough to her for them to be let go. What if she never wears them out and just keeps them collecting dust in her house? Does she keep them around in case we break up so she can get full use of them? She didn't even spend her own money on them so it's not like shed be getting rid of stuff she bought herself and never got to use, and if she bought them herself I wouldn't feel this way about them.

Edit: this is my first sexual relationship so I have nothing else to base this stuff on peronally

I guess I feel a little lost with my feelings and wonder if I'm just being an asshole over the whole thing and if it shouldn't bother me that much.

Tldr: my current gf is holding on to lingerie she got from a manipulative and abusive ex because it's worth a lot of money although she knows it makes me uncomfortable to see her wear it or to just know it's around because of the intent behind the purchases. Aitah for feeling uncomfortable with it ?