Have a friend in our neighborhood and our kids are close (her kid is 4, DS is 5).
Mom just has boundary issues. If my kid isn't available for a play date -- she is angry. If I make plans with other moms in the hood, she acts angry (it's ok for her to do it). No one is purposely leaving anyone 'out' -- there have been plenty of times there is no one around and I just hang with my kid.
She will have her kid walk to my door to ask for a playdate (4 - 5 houses down and he crosses the lawns. I wouldn't do this simply bc I think DS is too young and also bc I think you should call first). She will have her kid leave a message on my cell phone asking if he can come over. It's fucking manipulative bc now I have to tell a 4 year old that we are busy and DS can't play.
I feel a little suffocated. In the past, she has sensed that she has crossed lines and backs off. It doesn't last too long.
It's funny -- this wasn't too bad when I worked (WFH, but I was in my home office). But I just quit my job to take a summer off with my kid -- and it's her hovering that will force me into taking a job sooner rather than later.
She won't change so I'm not sure there is any advice, but damn -- please don't put your 4 year old on the fricking phone. It's annoying.