I typed it badly. I was mostly reacting to the others not you. You clearly stated she has not asked you to sell the bike and you are thinking on it. I think you should. The interesting read was the first post had nothing to do with should you but then the next several told you not to do it. They then drew you into that conversation.
If you were a hard core "I can't live without a bike" person then you should not. You are not so you should.
Whatever you do, have a happy wedding. You know what your bike is worth to you so a price is up to you.