I don't understand why now we can't see the people are going to go to an event if they...

I don't understand why now we can't see the people are going to go to an event if they are not your friends Facebook.*I will feel much relaxed going to an event if I know that.*I do not want to meet the girlfriend of my ex boyfriend, and sometimes I go to an event where he is going to go, but I of course do not want to ask him if his girlfriend is going to be there. It was great, that before I could see that, so I avoided the events they are going to go there together.*What I do now is to don't go to anyone of the events where he is going to go, because I am afraid to meet her with him. I think everybody would understand that...*He is my friend's Facebook, she is not. Therefore I can't see now if she would be there. *I hope you solve that, otherwise I will loos many events. And I guess me is not the only one, who do not wwnt to meet, the girlfriend or boyfriend of its ex.*Thank you *Silvia Alcalde Pe*a