I actually think he is very patient and tolerant of borish behavior.
The woman was a reporter that he knows well and speaks to on a regular basis (as is every president's relationship with the other reporters that regularly cover the white house). Notice how they usually call the reporter by 1st name.
There is also proper etiquette for a White House Press Conferences...which include the reporters know what the topic of each press conference is. You don't get to unilaterally turn it to a topic that you want to ask about. SHE broke the rules. She was out of line asking a question that was off-topic. He was calm and didn't take her bait...and didn't let the conference go "off-topic" just because she was rude and wanted to talk about something else. (Even CF has a rule that a thread has to stay "on-topic" as defined by the original post).
To say that she was bullied is insulting to her. It says that she is a "poor little girl that needs defending" instead of an accomplished journalist who is good enough at her profession to be part of the group who is allowed to participate in the White House press conferences.
Funny that you all talk about the President's bullying. The truth is that I feel so bullied by the minority party that I don't feel safe to express my support of the legally elected president most of the time. I am glad when he pushes back because he seems like the only person who is supporting the silent majority who actually do support him. I didn't have a lot of hope when he was first elected but I am impressed that in spite of all people who are intentionally trying to make his job harder, he is actually accomplishing what he promised. He may turn out to be historically one the best presidents we ever have had. We definitely were in need of someone who isn't a professional politician to get a leadership position in Washington, DC.
A poster on a trash can in NYC: "Christian women who support Trump are trash."