So I've been with my partner for around 20 months but we have been best friends for 20 plus years prior to getting together. We have a 6 month old baby together.
I added him to family sharing on my phone a while ago and yesterday I was just nosying about on my phone and found that all apps downloaded across devices can be seen. It would seem that 4 months after we got together he downloaded a dating app. During my pregnancy he wasn't interested in being intimate and this caused me to become very insecure. Everything turned back to normal soon after I had the baby so I gather it was due to the complications I had.
Over the last few months though I have noticed he no longer tags me in memes on Facebook which he always used to do, nor does he add anything I tag him in onto his timeline unless it's about the baby. He's also taken to putting his phone under his pillow when he always used to leave it on the bedside drawers.
Am I paranoid? He hasn't been meeting anyone physically because of lockdown so I don't think he's cheated in a physical sense but I'm gutted. I feel absolutely sick and I don't know what to do. I wouldn't ever dream of checking his phone it's just not my style and nor do I want to ask him to see his phone because again it's just not me. It's eating away at me though.