Why do you think I believe you made a mistake? The same logic I stated about Chrome applies equally to you. When you were standing at that fork in the work, did you know where either path would lead you? Even if you could think through the consequences in a logical way, where you fully capable of doing so at the time. If you were "impaired" for whatever reason, should you be faulted? I don't think so.
In fact, I could even argue that your choice was part of what helped to save your marriage. Without experiencing where the road you chose with Chrome would lead you, you may not have known that was a path to avoid. You may have kept fantasizing about a path that you thought was attractive without knowing the dangers, and in so doing blocked out the other paths in front of you.
Now you know and you have closed that escape hatch. Now you can focus on the paths that will reconcile your marriage. What is there to regret in that? Furthermore, I bet Chrome is still your friend.