My best friend is now dating my ex boyfriend
And don't ever use jealousy or insecurity over their past relationship to excuse irrational or controlling behavior on your part. It may be tempting ask your friend to analyze what happened between the two of them so that you can avoid making the same mistakes, but resist that urge.Of course, if your sweetie gives you a legitimate reason to believe he's untrustworthy, get out of there stat, but if there's really nothing wrong, don't create problems where none exist. Likewise, don't grill your boyfriend on what went wrong or insist that he account for his behavior throughout the entire time they dated.Whether you're gay, straight, bi, or not into labels, dating a friend's ex can absolutely be done without sacrificing your friendship — you just have to follow a few simple guidelines. (I'm going to use female pronouns for your friend, and male pronouns for your sweetie, for the sake of simplicity; however, every rule here applies no matter the genders of the participants.) Keep your friend's secrets.The reverse is also true; no matter how much you love discussing your dude with your besties, his ex can probably live without hearing the details of his current sex life. It's OK to come to your partner for advice if you're arguing with your friend, or vice versa, but absolutely resist the urge to belittle or insult one of them to the other.Their relationship is between them; it's not your cautionary tale or your soap opera. It's easier, of course, to have hard-line rules — "exes are never OK" versus "exes are totally fine" — but that's not the world we live in.If they choose to share details with you, that's fine — you don't need to stick your fingers in your ears, unless an overt comparison is being made (see No. Your relationship and theirs are separate things, and you don't need to know anything they don't care to tell you. If someone seriously mistreated your friend (we're talking emotional or physical abuse, infidelity, lying, stealing, etc.), don't date him, no matter how awesome his butt looks in jeans.
They wholeheartedly believe that it's wrong, disrespectful, and if a friend did that to them, they'd never talk to that person again.
Is nice you call him your ex, to mean you left each other and both of you moved on.
You moved on and so did he, but in this case with your friend, such is life and I don’t see your ex negatively impacting your wedding or your life thereafter.
You and your friend are not in competition, except when you're actually playing Scrabble. Trust that your dude is with you because he likes you and you're awesome, not because he's biding his time until your friend takes him back.
Trust that your friend is happy you've found someone you dig, not plotting to sabotage your love.