The 27-year-old revealed that he was exasperated by his side's run of form that saw them slip to bottom of the AFC East and out of playoff contention after a bright start to the year.
Johnson told the Buffalo News: "Sometimes I can be misunderstood, and I think he probably was assuming since, you know, the numbers wasn't the same as the previous three years, he may have thought I was getting frustrated about some other things.
"I think it gave him peace of mind, knowing I'm not mad at him or any other player. I'm just mad at the situation, losing these games.
"The talent is different this year from previous years, so that's where the frustration came from, and I think he understood that."
The Bills are 4-7 in their season going into week 13.