They wear different masks throughout the crisis. Yes, they can appear to be happy as clams and when they are alone the masks slip and they can sit around moping, staring into space, etc. They also do not sleep very well because their minds are running a mile a minute. Wearing masks tends to get stressful because, as they move along, it gets harder and harder to be someone they are not. All the world is a stage to them until one day, the normal routine sets in and life swallows them up once again.
Why would you feel embarrassed around your mutual friends. Your friends will figure it out in time and you don't need to tell them everything that is going on.
Breathe and remember...you can't do anything about him and his behaviors...but you can take care of you and your daughter.
Hold your head up, back straight and find something to smile about each and every day. You have absolutely nothing to be ashamed of.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
