One flesh with Christ? Of course. We are His body. And the description of us kicking butt with Him in Rev 19 with our beautiful adornments of the white robes which are the righteous acts of the Saints is not creepy at all!
We really do need to look at what that 'mystery' is before we get creeped out based on our contemporary mindsets. Seek and you shall find.
Anyway, what's wrong with creepy, when you consider creepiness engenders fear, which is the beginning of both knowledge and wisdom.
I guess I'm just not very spiritual like the rest of you. I have the feeling that no matter how the Church's and Christ's relationship was described, you all would be ok with it. I guess the thought of a man being a "bride" conjures up images in my mind of a drag queen or effeminate homosexual man dressing up in a wedding gown, heels, and makeup and I find that disgusting. Sorry.