My in laws on social media

I have my in laws on social media and it seems that my mil only likes or comments on pictures that does not have me in. Anything that’s related to me and baby gets completely ignored too. Not a big deal but add it all up, along with some poorly thought out comments and passive aggressiveness on their part ..... and I’m brewing a storm up over the fact that they might have an issue with me... I’ve considered the possibility ever since I was pregnant and now they have a grandchild (first one) the thoughts have been itching at me.

Are my niggly feelings correct? Or am I thinking too much into it? Does anyone else have passive aggressive in laws? How do you deal?