Ex starts dating again
I understand taking it slow, but if he is dating another person it may not be healthy for you, he may be using the situation as a Safety Net, not time to say yet, so give it a month, if things are the same, just forget it, he is playing mind games.
If he is taking it slowly with the intention to be intimate again, to be dating another girl is not the way to go.
Admittedly we both had faults when we were boyfriend / girlfriend. We both agree what went wrong and dating this time around has been great.
The catch though is I don't know how long I should stay in this holding pattern until he is ready to commit again.
Keep an eye on him for another month, and then you decide. I have to admit, I go back and forth about the Safety Net issue.
That last one is the kind of thing that, after your stomach does a few flips, will make your face all hot and cause you to immediately lose your appetite.