I'm guessing that you two are having a communication problem as it is highly unlikely that a "senior colleague" can't understand simple logic.
To be clear, I'm not saying that the problem is entirely yours, but in most communication problems, the blame lies with both parties. I'd suggest involving a third party (another colleague) in your conversations and allow them to moderate the discussion.
In my experience a third party can quickly see where the communication is breaking down, even when it's not apparent to the two people attempting to communicate.
To be clear, I'm not saying that the problem is entirely yours, but in most communication problems, the blame lies with both parties. I'd suggest involving a third party (another colleague) in your conversations and allow them to moderate the discussion.
In my experience a third party can quickly see where the communication is breaking down, even when it's not apparent to the two people attempting to communicate.