If your friend did the breaking up, its more socially acceptable to date your friends ex. Under all circumstances, it would be a nice idea to just ask your friend politely if he or she is okay with it. He or she may still have feelings for the ex, even if it happened a long time ago.

How do you tell your bestfriend you have a crush on them?

Start up a normal conversation before sharing your feelings. Be open and honest about your feelings by telling them that youve developed feelings for them, and you thought it was important that they knew. You might say something like, “Its not easy for me to tell you this, but Ive had a crush on you for awhile now.”