What could my boyfriend be doing instead?

Me and my boyfriend just had our son 3 months ago and we don’t live together but he says he will come over to see me and our son but we haven’t seen him in weeks almost a month, he said he will come over and he hasn’t still but he’s been on Facebook active so I texted him and called him but he doesn’t text or call back and still hasn’t came by, he sends 100 dollars for our son every month but I’m started to think he’s ghosting us and probably met someone else, he’s very sneaky and doesn’t seem to want to be around us.
What could my boyfriend be doing instead?
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