It's a shame that your business PARTNER does not ride at all. Perhaps you could suggest to your business PARTNER that your PARTNERship might be strengthened if he/she started riding. However, I'm not interested in whether people's business PARTNERS ride or not, I'm interested in whether people's partners-in-love ride with them. I'm not sure why you wrote PARTNER in capital letters though. Maybe you were trying to make some sort of flippant point. Well, whatever your clever little point may have been, I'm sure you fully understood the thread title and I'm sure you can understand that it works better to write 'does your partner ride with you' than trying to include every potential type of partner by saying 'does your girlfriend/boyfriend/husband/wife/lover etc. ride with you'.