Could he be lying about himself

I talk this guy off and on. He says he wants to get better with his communication with me, he knows it’s bad. Honestly I don’t talk to ppl much only if they have some sort of significance in my life or I’m really interested otherwise I wouldn’t care to speak to them. Like we went out, had an amazing weekend and he just disappeared again. It always makes me wonder if he has a partner already. I’ve had previous reasons to believe so but I forgot. Our relationship is so slow paced when I’ve known him for 2+ years. we still have much to learn about each other because we don’t stay in touch often. Also on his Netflix account, I’ve seen this name that I saw before along with kid profiles. Before I seen this name on a vaccine card in his car with his last name, baby wipes and kid fingerprints like I don’t wanna think he’s hiding something from me.

Also he’s working outside the US so he has me come visit him there and he wants me to bring my daughter with me to stay there with him. He helps me with my child anytime I ask (financially) no doubt but idk I feel like there’s something else.