What is the most logical next event?

How to date your ex's best friend
Make sure your feelings for the best friend are real.
Though you may be wrapped up in emotion right now, you should pause and consider how deep your feelings are for the best friend. This may be especially important if you broke up with your ex-partner recently and are still feeling raw over the break up.
Your emotions may end up leading you to your ex's best friend, for perhaps the wrong reasons. Sometimes, you can end up fooling around with your ex's best friend as a form of retaliation.