Vivid dream of my ex

I had a dream that he wanted me back. I haven’t talked to him in over three months. Me and my husband broke up and we started talking. He was still the selfish boy he only thought about himself. Anyways me and my husband worked things out and were better than ever and I stopped talking to my ex. Right now we’re not physically together because I needed to take care of business in my home town. Last night on the phone we had an amazing time. We talked for hours and even sexts. So I don’t understand why I had a dream about my ex wanted me back. I kept telling him no. And then at some point in the dream I was unsure who’s baby it was. I’ve only ever had sex with one man and that’s my husband so I know for sure my husband isn’t taking care of my ex’s baby.