[poink]

Don't worry so much about the "they will hate me" or "my team won't trust me" angle unless you know that to be a fact. Most people understand that business is business, management or not, and if you're a solid employee that your team could use they're not going to be pissed that you got a better offer and accepted. They'll just be happy to have you back so they don't have to replace you.

I like the "make a joke of it" angle, but if you can't pull that off you really should be fine with just being honest about what happened, assuming you work with decent human beings. Story seemed reasonable enough to me.