Friend drama

I am caught in the middle.

2 of my friends who married each other about 3 years ago and have an almost 2 year old daughter together seperated mid last year. She cheated on him, the she blamed him because he was always yelling at her, so she ended up leaving him, and there daughter. He was obvously devastated and said some things that he shouldnt have.

About 7 months he tried to make things work because he wanted his family back together,  but she didnt want to get back toghther. Now she is desperate to get back together, but he is done.

This is where I come in.

I am friends with her through an X, she dated him after I did and she hated me at first, but she soon found out why I dumped him. I am friends with him through her, and became closer with him, when she left him.

From what I found out today, I am the only one that knows the full story, so they are trying to find out what the other on is doing through me, and it is exhausting.

I said to myself yesterday that I wasnt going to get involved with other peoples crap, but I guess old habits die hard. 

I dont really need the stress, and they really need to sort this crap out themselves,  but they dont really listen to each other. I am hoping just to referee these this as they go.

Fingers crossed that things get better