If he wants to talk tell him its not the time or place your hear to support your friend and you guys can talk later..
Just try to keep your distance from him. If you see him trying to approach you, walk off and go talk to someone else. He shouldn't have told you to abort your child, so until you're ready to have a conversation with him...try to avoid him. I'd still be upset so I would most likely get into an argument, so I would definitely try to avoid that.