Running away and living in denial is totally an acceptable way of adulting.

That way I don't have to admit that very bad thing I did to the guy I'd been in love with since the day we were born. I didn't mean to deceive him that way. It was an honest mistake. But still, the past is in the past, and that's where it'll stay. If I work hard enough, I can outrun the family legacy, as well as my terrible secret.

But suddenly, the past is no longer in the past. He's standing right in front of me, in this bar in Boston, and the chemistry is still there between us... but he still thinks the woman he was with all those years ago was my twin sister.

This could get complicated.