Have you ever had a crush on someone else? And did you tell your husband about those feelings or not?

I have a confession. I have this crush on my colleague at work right now and nobody knows about it. I have been chatting with him online and it has been just friendly casual chatting. Things are so so at home with the hubby. Feelings have become stagnant. Sigh. I know I am asking for trouble. But I can't control myself.