PRIVACY Need help po to ease my mind, we had argument lately and it's been 1 week since then

Yesterday we tried to fixed our family, actually after our every argument we exchanged passwords or he will ask for it. But yesterday when we became okay he just didn't care if we can't access each other account and it's very unlikely of him. I have this feeling of fear with a fast and loud heartbeat, and asking myself why? I couldn't sleep and always thinking about it. He's always active in his social media account and it takes minutes to read my message or sometimes not until he will logged out. It's weird I didn't know what to do, and please I need help. I already have a headache I think it's anxiety due to my thoughts. Thank you for helping#advicepls #pleasehelp