What do you all think

I love my fiancé. I trust my fiancé. We just switched my phone to his old one until my new one comes In. I’m going through deleting stuff. There’s an ex I knew he had they more or less hooked up not dated. These messages I found date our early stages of talking. Like around our first date 2017, she basically says you need to call me, not something to talk about via text, he said I just tried you didn’t answer. She responded with im around other people are you at work. He says yes she said call me when your out not something to talk about at work. He asks her if this is something serious because it’s not fair that she’s making him wait. And she said it depends it may not be to him but it is to her. And that she never wanted this. But to text her when he’s leaving. He texts left, the next message is in 2018 asking about a coworker. I should preface with I also work with them just in a different department I don’t really know her. They don’t talk anymore she just likes his stuff. I’m thinking pregnancy or some std or something. What do you all think.