Yes. [Though "wanted to" is definitely an exaggeration. He does not want to be here having this conversation.

But he owes it to him.]

...I owe you an apology for my behavior on our first meeting. I was...out of line. [His posture shifts, uncomfortable. It's not that he doesn't think Grayson won't forgive him (he's Grayson) as much as it is this means acknowledging his own mistakes and acknowledging their source.]

You did nothing to deserve that treatment. ['I was upset and I took it out on you' is what he doesn't say.]