Oh Nannyto, I’m so sorry for your heartache. Read this as if it’s from a good friend of yours, as that is how I have written it.
It’s easy for me to suggest but for you to put it into practice will be hard and sad
but I suppose all that can be done is wait it out for a while, act like everything is fine though - don’t let him see that you are cut up about this. The only reason I say that is because sometimes people will run further away from us when we show them our pain. Now if he saw a Nannyto that was in good spirits despite what secretly is painful for you, he just might think something like “oh wow I wonder what she has been up to? She seems busy lately” and he’ll want to catch up with you. Now if you have a hard time putting up a charade that the waters all fine then sure, I’d ask him what’s up, probably best to do that at a time when it’s just you and him though, without the baby. Something along the lines of “son, just a moment. Let me ask you something, but you have to meet me at my level, human to human, mother to her grown son…are you alright? You’re a new father and juggling many roles, but our relationship is so so far from what it was I can’t help but wonder what has happened? Please talk to me about this.”
And then it’s important to accept whatever answer he provides as the truth of the matter. If he says he has no idea what you mean, then he hasn’t noticed that things are different, and he doesn’t have any hard feelings towards you, he is just being thick and hasn’t had the capacity to notice. If he says that things are tough lately, then he is just very busy and this is temporary so wait it out. If there is actually a problem then thank him for telling you and do what you can to work on the issue.
Take care of yourself and be kind to yourself.