If you want someone, you have to be willing to wait for them and trust that what you have is real and strong enough for them to wait for you. If somebody jumps ship for you, that fact will always haunt you because you'll know they're light on their feet. Spare yourself the paranoia and the pain and walk away until the coast is clear.
No matter how happy and peaceful you can be at a certain time, you always have this - at least, I do - paranoia or catastrophic thought that even now that I have all this peace and quiet, what's the next challenge? What's coming next? On a very human level, I think most people can identify with that.
To most people, paranoia carries a negative connotation. I believe it is one of the most valuable attributes a leader can have. It is about self-reflection and having the courage, humility, and discipline to constantly ask uncomfortable questions that can potentially poke holes in your strategy and challenge your conventional thinking.