I have my suspicions my bf of 13 years slept with someone else while we were separated. We were separated so he was a single man but found out he went to see said girl which he first denied but with evidence he couldn't deny so turned in into 'she's an old friend, we didn't do anything' it really plays on my mind. And even though' sleeping' with her 'wasnt wrong' the lying about it is. If someone messaged you asking if you slept with their bf would you tell the truth? They've apparently known each others years. Although i never met her in all our years together so obviously not that good a friend but she might feel loyal to him and lie. Would ibu to message anyway?