Mama! They are right and you know it. So freaking what if he calls her. The situation has to change, but THAT part of the situation is one you have little control over and if you let it sabatoge your efforts to have a great time/present a GREAT side of yourself, you will only serve to continue the crappy dynamic that you have now.
The biggest change I think any of us can make is to finally get past the need for everything in our R to be ok before we can let loose and have fun. Michelle calls it GAL, but I think it can apply to all levels of our lives post-affair. You just need to let go of all that crap he's doing or may be thinking. Just have fun and if he can't fully be there to have fun to, f--k him... er...uh... sorry, I know you'd like to...lol.