Is it weird that my cousin went down on me?

I (18M) had an online friend (who came out as bi, I'm gay) and they were just flirtatious with me, even when they started dating their boyfriend. They got me to send nudes even though they knew I was gay and wasn't sexually attracted to them. It went on for years. I started taking nudes of them and they went off at me and then ghosted me for a while. They recently came back and started flirting with me again and, well, I know it's wrong, but I screenshot all of their flirtatious messages to send to their boyfriend. <br><br>It's been months since then and they're still flirting with me and I never sent the screenshots. That was last night, then this morning I woke up to them sending a flirty message. I told them that I felt like I was in a toxic relationship with them. They started apologising and, well, they reckon they're going to delete their socials and go off the grid for a while. They then said they wanted to meet up once before they disappeared. They went out of their way to meet with me and we ended up back at my place, where they went down on me. <br><br>I know that sounds weird, but they're one of my closest friends despite everything and I can't help but feel bad for them. I know that the sex was weird, but it just feels too awkward to bring it up. <br><br>Is it weird?