Not a divorce but still not happy....

So my parents separated and said they were getting a divorce...

My dad tried to fix himself and now my mom is willing to work on it and they're living together now.

The problem is, is that I'm not ready. I've adjusted to the back and forth and I'm uncomfortable going back. I feel selfish because everyone else is very happy with this and I'm not. Plus I know that so many people wish that their parents would get back together.