Thank you all for your comments....its not like there is a string attached....but I needed the advice because I didn't want to say something offending.

As per the message she felt like I am the only one messaging him and calling him...this guy must have deleted his sent messages.

If I removed him she might think that Ohhhh game over I got you and if I replied it will be something not good for both of them, because I am just gonna say it in black and white.

I think I should just leave it alone and never ever talk to him again and focus on my marriage and my understanding husband....