AITAH for cancelling lunch from a friend?

AITAH

Today a friend asked me to meet her for lunch. I told her in the morning that I was stretched for time but could arrange to come and then head back to work. I arrived at the venue just one minute after she did. I was finishing up a call, but I wrapped it up within two minutes of sitting down.

We started talking, but five minutes later, her partner called. She answered and kept the conversation going with him. I started losing patience because this is a recurring issue—she invites me out but then spends majority of the time on the phone with her partner. We've had a big disagreement about this before where she stopped talking for months.

Within ten minutes of being there, I told her I had to get back to work. She asked why, since I had just arrived, and I pointed out that she was busy on the phone anyway. She got aggressive, raised her voice, and stormed off, making a scene in front of everyone at the café.

Her justification was that I had been on a call when I arrived, but I ended mine almost immediately. Meanwhile, she and her partner (who is in jail) don’t work, are constantly fighting, and she frequently vents to me about their toxic relationship. Yet, whenever he calls, she drops everything to talk to him, disregarding the people around her even if she's mid conversation.

Honestly, I’m tired of hearing about her relationship problems when she refuses to do anything to change them. They could have spoken later—I went out of my way from work to meet her, only to sit there listening to a conversation that could’ve waited.

An hour later, I called to apologise, but she didn’t answer and said she was too upset to talk. I also messaged her to apologise, which I now regret because it feels like I validated her behavior and I know she will tell everyone she was right because she lacks accountability. So, AITAH?