I would not be surprised if BF contacts you and tries to confuse things. He will be super angry that you told the truth to OW, but when they start fighting or conversely when he sees she is a doormat he will suddenly want to talk to you I bet.
Be prepared.
Wow.
Good luck getting through this seriously emotional time. Take care of yourself, drink lots of water and don't operate heavy machinery. Be with loving friends who can hold your hand and make you tea. You'll be ok.
