My girlfriend of three years confessed her love for my best friend at our engagement party

Summary

My girlfriend of three years, right there at the engagement party, announces she wants to marry my best bro.

I, being a stand-up guy, turn around and marry this uptown girl, Serenity Hayes.

Five years we're married, and it's all rainbows and unicorns, seemingly.

She's all over me every night, whispering how I'm the only guy for her.

I thought we were golden.

Until I see her at the hospital, pale as a ghost, telling her housekeeper to lock it down ― keep me in the dark about her getting an I