Anything can happen. I feel however that to an extent you want this relationship with this guy to fill a void you are not getting by being in relationship with married guy. If this is about the loneliness of being with someone who can't commit then you should distance yourself from this unfulfilling relationship and work on why you made that choice. It is probably significant that you chose someone at work. This can just be a way of disconnecting from this relationship that cannot go anywhere. It is up to you to decide what is healthy for you. Choosing a work relationship isn't healthy either.
You don't have to be in your work relationship whether this guy comes back or not. You don't need someone to save you. If you like someone then make an effort to see if you can get together. But the circumstances have to be healthy. It could be him. but it's up to you to decide if everything can work together in his world and yours.
Please press accept