Romance book with a virgin mmc

So I’ve recently remembered a scene but I cannot find what book it is for the life of me—enough that I’ve started to assume I made it up or read it on wattpad in high school.

The scene I remember has the two main characters alone in a room on a couch and things are getting steamy between them when someone (possibly an advisor or assistant to the mmc) walks in on them. He immediately leaves but the mmc makes a mention that of course he would be walked in on the first time he was doing something.

At first I thought it was a fantasy because I believe the mmc was waiting for his fated mate or something like that, but I remembered a different scene where he asks what the strings he felt were and she had to explain her iud.

I fear this is now lost forever to me so I came here in case anyone else remembers this.