Business Partner Not Abiding By Operating Agreement

[Account Closed]

Hello,

What would be my first step in attempting to get a business partner to respond to texts, calls, or emails as well as share costs associated with our business. He is in Houston and I am in Dallas. He's unresponsive, and we have monthly reoccurring expenses as well as one-off expenses that I am getting stuck with. We have an operating agreement that he is not adhering to.

Is this something I can go to arbitration with? I would like to get this taken care of, because it's incredibly taxing financially when I have to carry these business expenses myself.

Thanks,

Nick