Stolen Fiancé, Broken Vows

There was a viral confession thread blowing up on Twitter.

The top comment read:

*“I’ve been holding this in for six months. I finally need to get it off my chest. I did something unforgivable to my sister. I fell in love with her boyfriend… and we slept together.”*

At first, I felt a wave of pity for this stranger’s sister.

Then I clicked on the user’s recent replies, and my blood ran cold.

*“I tried so hard to fight my feelings, but I couldn’t stop inserting myself between them. I went on all their vacations. I tagged along on their dates.