blurred lines

She had kissed me at an event we were at somewhat out of the blue. Particularly given her boyfriend in another country. We talked and seemed like nothing was really going to happen. Then lockdown happened and it felt like the lines blurred throughout that period and there was some form of mutual reliance and comfort. I was planning to send her stuff to make coffee with as she was stuck without means. Asking for her address to do that triggered a denouement where we both had to confront the situation and we stopped talking. The other week, I sent her a letter to try and say something about what it meant and how it would have been nice if the circumstances had allowed but she reacted badly to that. I deleted her details from my phone today.