Cheating and LDR

How could you tell if your LDR was cheating? He does not have social media.

For some reason I got really insecure about our relationship a month or so ago. Weve been doing this for a little over a year. I've tried talking to him about it and of course he tells me everything is fine with us. I just have this gut feeling sometimes.

I do love him, hes good to me. I dont want to lose the relationship if it's just my anxiety causing me to think these things.

For example, he redid his bathroom. Complete gut job and remodel. He cleans his bathroom on a weekly basis so I know it isnt a cleanliness issue but he refuses to show it to me. He has awesome talent with that stuff and had no problem showing me another house he was working on. My anxiety wants to say hes probably hiding the fact another womans stuff is in his bathroom.

We use a video app sometimes. He says I'm the only one he uses it with but he logs in at times hes not talking to me. This morning he sent me a meme about "I'm not the kind of girl who..." and said it reminded him of me. He was on the app and sent it to me like 3 minutes later. My anxiety wants to tell me that another girl probably sent it to him.

It all sounds so stupid I just dont know what to do with these insecurities. I have an appointment later this month with a counselor