Could he be cheating Or am I just losing it?

I don’t know what it has been with me lately but I always feel like my husband is cheating. He always says I’m hard to please and never happy. I tell him from time to time when he is making me feel shit that I do everything for our two kids and the most easy going person and he comes home and is playing games or on his phone. Sometimes won’t even spend half an hr with them. He says that he might not do much with the kids but he works hard to provide us with a good lifestyle, doesn’t go out that much and doesn’t complain if I have not made dinner.

Anyways, yesterday he seemed to be on Whatsapp all day. When I got home from the gym he didn’t go on again. I went looking through his phone when he feel asleep and on his app was nothing from that day 🤨. I know I am crazy, but I checked before also and he is online most of the time! Does he delete the chat? We are looking to move soon into our new place too so I don’t know why he would throw it all away if I caught him out. I promised myself if I ever caught him doing anything, I’m OUT!

My question is, do I just monitor it and see if he seems to always be on and takes anymore selfies on his camera. I don’t think he knows I can log into his phone. I feel so bad for not trusting him at the moment but I don’t know.

Thank you for reading and support is appreciated ❤️

Update**

Thank you everyone for your comments and advice. So yesterday I went training with him and he went on while we were at lunch and then not again for the rest of the day/night. Only this morning before he went to work I saw it said he was on. Not sure if maybe he is chatting to work friends and deletes, he just checks the app and logs out? I’m just confused but hoping that if there is something I will find out. Going with my gut lately I always seem to be wrong but I will keep logging for myself and see how it goes. Don’t want to put my foot in it too soon and look like a psycho. When I made small comments about cheating or other girls he said I need to see a doctor and have nothing to worry about!

Update #2**

I’m actually so angry! I messaged him saying have a good day and he has been online but has not bothered to reply to my message. Last night I just couldn’t bring himself to look at his phone while he was sleeping-scared to get caught! Now I definitely feel like WTF who is he speaking to!!