I'm unsure about everything you have said since I'm a new mum but omg you are not a bad mum never think that!!!!
We have lived with mom monsince he was born till i got married in augest and there both having separation anxiety
No not a bad mom but if he's feeling some sort a way you should have a heart to heart talk with him to see if he will open up. See if y'all can think of stuff to do together. It might help
I mean is there a reason you had to send him away for you having covid? I would just keep my kids with me if I were sick and if they were sick, we are a family so we are bound to catch each other’s bugs, I mean people get sick a lot so doesn’t really seem sustainable. But you’re not a bad mom, not even a question 🤍
He didnt get sick
How old is he.? Has your mum maybe struggled with having him for a couple of weeks.? Has he been acting differently for your mum because you haven't been there.?