Girl told me how she lost her Virginity

So i(25m)ve been talking to this girl(23f) for a while started as just friends kinda flirty- whatever. Then we stopped talking for like 6 months and about 7 months ago, we started talking again. Alot more this time, but less lustful;deeper conversations, real conversations, telling eachother our secrets, that kind of stuff. Ive developed very strong feelings for this girl.

A few weeks ago she told me how she lost her virginity. She said when she was 15, she lost it to some 28 year old guy. I guess they hung out and smoked/ drank together-whatever(she was not forced she made that clear), i did not ask any details about it because i was honestly disgusted. This is ruining things for me and i cant stop thinking about it and how disgusted i am about it. I really like this girl but now i am unsure how i feel, or if i could ever look past this. I know it was a long time ago, but still. The whole situation keeps replaying in my head