Not that tough
I am a biker through and through, I wouldn't be with a woman that wouldn't allow/want me on my bike. If for some ODD reason I had to decide, I would have to be with my wife, I've never been "in Love" before, only thought I knew what it was. When I'm old and feable, the bike will not help me out of bed, or take care of me when I'm sick... she will. She is my best friend, my Lover and soul-mate... my bike is a wonderful machine that courses through my veins, but it isn't alive.
With that being said, her and I would have a HUGE fight and many bad feelings if I were forced to make a choice... but ultimately, she would be my choice. But I would always yearn to climb back on my bike...