What should I do?

Li

My daughters dad looked for me last November, we started going out he told me he was separated. We talked everyday and night ..He mentioned he wanted us to move in together. Well, I saw a repeated number calling him so I memorized it I called it and it was the wife they have no kids..😞 she said that they were still together and that apparently he lied to both of us. Since that day he has been giving me excuses that he can’t see the baby because he is making things better for the baby not sure what he means with that. It’s been 2 weeks and tells me the same thing . I feel like he wanted to live a double life. He was good with the baby,but ever since he doesn’t call me as much or txts me as before..he calls me from another number. Should I just change my number? I’m really hurt by all this and I feel like he just cares about himself.