I would call this a big case of drama when it doesn't need to be. Is there a specific reason why you need someone to ride with? If it's something like, you can't ride alone because you have seizures and need someone to watch you at all times just in case and if no one is with you then you can't ride, then yes I'd see that as more of a problem. But if you're upset purely because you don't have someone to talk to while you ride...let it go.
And man, $800 a month? Is that just for one horse? Your barn better be made of gold.