What can I do 🌚

My daughter is 1 years old and her dad is just now becoming active in her life, but I’m kinda starting to have a little crush on him but I don’t know how to keep it cool when he’s around. Mind you he’s single and mingling and I’m also doing the same thing. We were never in a relationship btw it just happened. I just don’t know how to approach it or if I even should approach it. Idk if he’s interested in me or not.