Quoting A&J. ♥:" <blockquote><b>Quoting The Dandelion Rapist:</b>" I couldn't. The thought of being ... [snip!] ... I forgot to mention in the OP, they never slept together. They were somewhat serious but it was a high school relationship."
I still don't think I could. Somewhat serious means feelings were there at one point. Even if those feelings are gone now, for some people those feelings could resurface just by seeing their ex. There would be too many complications involved, and on top of that whether you're close to the family member or not.. You just don't do that to family.