Take a break man, we all need one. I would however look at your tavern and all your work differently. You have worked so hard and so passionately for what you had, and it all was burned to the ground (literally).
If I was in your spot, I would think of this as great character development. In-roleplay, you can take this as a devastating event, and become absolutely disheartened and vengeance-seeking. Or, you can deal with it in-character through rebuilding. Take the cards you were dealt, and do good from it. It's up to you though. No one's gonna stop you from leaving, and no one's gonna stop you from staying.