This is awful, but here goes:
Honey-bunny and I had been dating a couple of months. One day, we went to the beach together, hiked in the woods nearby, etc. We got back to his place and I was so tired, he said I should take a nap on his bed while he fixed us some dinner. I slept a while, and when he called me to say dinner was ready, I realized what day of the month it was- I had bled profusely all over his comforter! (Mercifully, I had my duffel bag in the room with me, and it had my gym pants in it-whew!) I figured I would take it home and wash it for him, but I couldn't very well take it out of his apartment without him noticing. So, I rolled it up and told him it looked grubby, and I was going to wash it for him just to be nice. Well, he kept saying, no, don't bother, until I finally had to fess up. So he grabs it and starts spraying the stain with laundry stain remover, so it wouldn't set in. I was mortified, but he kept saying that he'd been married, had a few girlfriends, he was used to "girl stuff". Turns out, the comforter had been a wedding present from his now-deceased mother, and it was one of the few things he'd taken from the home when he and his wife divorced because it was so special to him. Which just made me feel more awful, but I was able to get the stain out, thank God!