Ladies who gave their partner a second chance after they cheated?

How were you able to move forward? I have forgiven him but it crosses my mind everyday. He travels for work so all I think about is what he could be doing all day long.. I feel like I’m backing THAT toxic, crazy girlfriend. I will text him over and over again if he doesn’t reply, I never would do that before I found this out. I want to know where he’s at, at all times. I get sick to my stomach if he’s active on Facebook but not relying to me. I feel like I’m actually going insane. It’s sad because I can tell he’s honestly trying. I know he really does regret what he did, but I’m having a hard time moving forward and with that I’m becoming very toxic to our relationship. Can someone please help me with this.