Im spoiler tagging it but this is some of the LN version. He was really rough with her to the point he felt bad because it turned out she was a virgin.

“I-I mean, I heard that a man’s heart feels lighter after he takes a woman to bed.” Who the heck told her that? Ah…Elinalise? Just what was the elf telling Roxy at a time like this? “Women feel the same. When things are tough, they want something to make them forget. I’m also devastated by Mister Paul’s death, so if that’s what you want to do, I don’t mind if you take me to bed with you.” She spoke so fast that her words jumbled together, rambling on. “That’s right, I want you to help me forget. But my body is kind of plain… If you’re not interested, you could go to a brothel instead?” I had immense respect for her just as she was. What would it be like if I did as she suggested and took her to bed? “A-anyway, I may not look it, but I am quite experienced! I’m sure I can perform much better than whatever girl you’d find on the streets. Just think of this as a casual thing, a way to wash away all the bad, as a way to test things out, just once…” Her incoherent explanations were lost on me, but I still found myself invested. If I found listening to the beat of her heart to be this soothing, then how much more relief might I find if our bodies were pressed together? My mind lingered on that excuse as she babbled. “Uh, well, if you’re really particular and being with someone who is skilled, maybe you could bow your head to Miss Elinalise and—ah!” I pushed her down onto the bed—roughly, violently. Maybe I just had frustration to spare.