雅思口语P2 Describe a time when you were friendly to someone you didn't like(文字版）

A couple of weeks ago when I was buying something in Starbuck, I came across my ex girlfriend. At that time, I was like standing in the queue, rather long. I stood there 10 more minutes. She was next to me. Honestly, she looked rather tall and slim, big eyes and curly hair, a very beautiful girl I must say. She recognised me as well, then I had to show my politeness to her, you know. Said hi, made greetings, or just talked to her, unwillingly for sure. You know, I couldn't say that she was bad or something, but she used to make big mistakes when we were staying in the relationship. Mistakes, not one mistake only. Those terrible things have been gone. I haven't seen her for 3 more years, till now. All what I thought at that special moment was to escape, I wasn't planning to stay in that place for too long. But I had to. Quite embarrassing moment for real. I once thought that I wouldn't see her any more, but when I recognised her, I still felt a bit different in the bottle of my hear, it might be bad, might be good. But I hope that this kind of things do not come to me any more. That is it.