Okay so you haven't been back to this post, but I hope you are reading the replies.
I have a huge amount of experience with dating. My marriage ended 2012 and I spent 3 years dating on and off. I've been single since 2021 and started dating again a couple of years ago. Mainly online due to being a single parent and having a busy job.
I mean this in the kindest way possible, from one woman in the dating cesspit to another. This man is not committed to you. You're being too intense and thinking too far ahead, trying to problem-solve in a very new relationship. Early on, if you're not compatible then you walk away. Secondly, the signs are all there that he's playing you, and I'm sorry to say that the signs are also there that you're either not his only bed partner or he's married.
You need to look for patterns in his texting. Does he suddenly stop chatting only to reappear at a random time? Have you ever seen him during the day? How many dates in the wild have you had? When you say he leaves to be home when she wakes up, presumably he goes home to sleep? Does he divulge much about himself or ask you about yourself? Have you seen his social media and can you find it if not? Has he suggested meeting family and friends? Do you know with certainty he's living with his parents and not his wife? Does he talk about his daughter much? Have you checked to see if he's still on the apps if that's where you met him?
My experience of online dating is also that there are a LOT of HGV drivers on there. I'm not saying all of them are dishonest, but I am always initially wary as it is a job involving travel and working away so it's easier to lead a double life.
Has he told you he cares or loves you? Have you said that to him? Do you eat meals together? Was there sex talk early on?
In summary, this has red flags all over it. But EVEN IF he's genuine, it can't work. Why would you want to make your life more complicated when it's easy to get out now? Know your value - you deserve to be in a relationship where you get quality time together and where it isn't an impossible challenge from the outset. There is a big difference between your man working away when you were able to date and get to know each other so have a strong relationship; and dating someone who works away and you'll never see. You can't build on sand. I've found after years in an abusive relationship, I seem to get easily hooked into situations involving emotionally unavailable men and I see it as a challenge to win. That's work I've had to do on myself; to realise I deserve effort, time, commitment, and that even if my best match comes along, if we can't see each other for ANY reason then it won't work unless both of us can and will change things. This relationship sounds like it won't work even if he's being honest, so cut your losses.
Please come back and update us all. People here just care about you seeing the light.