I feel crazy !!

So, I’m hoping I’m wrong here,maybe some of you can help me. I’ve been married 40 years. In the last few months I noticed a lot of changes in my husband . He lost a lot of weight , was spending all of his time doing work in the garage,very distant from me emotionally and when he gets mad at me he’s been enraged ,. I was signed into his google account because I was helping him send documents to his lawyer. Then I noticed he started creating all of these secret email accounts . Deleting his messages, taking selfies etc So I started looking for him online , found he had an outlook account with Skype and teams which allows online chats . I searched his google history one day and found all these porn sites like spate, chatterbate , etc. then he was searching online apps to chat with strangers etc . I confronted him, about it and he got violently mad . How could I accuse him of this blah blah blah . He said he didn’t search those things his account was hacked even said he didn’t create a Microsoft outlook account , he must have been hacked . His Microsoft account has all of his other emails in this Alsi including iCloud . I noticed a few things, he spends a LOT of time looking at his calendar, the. There were events plannned on there for chat meets , Skype meets etc. he’s gotten really good at covering his tracks ., I also found in his files a my att with att56 data file ,machinery data files etc . I can’t open them , but it seems like he either got a eSIM and is using data instead of Wi-Fi so I can’t see who he’s calling texting whatever . He keeps denying these things and saying he feels bad for me , I’m crazy .im starting to feel like I am . Any advice would be grea5ly appreciated TYIA