Thinking whether to make big deal about this or not?
So, my husband and I were talking, he was using his phone by the time I was near him I saw his WhatsApp was open and just when I got close to him he shut his WhatsApp and opened some other app as if he didn't want me to see anything on screen. Now, I have posted earlier about him being friends with his colleagues and how I am suspicious about something going on (he reassured me that there's nothing and I shouldn't keep doubting him all the time. I did this 2-3 times in the past where I felt suspicious of something). Now, this act has again triggered that suspicion. I desperately want to check his phone without him knowing but he has his phone all the time but also in dilemma whether this is the right thing to do? Because I don't want to enable this habit of mine to keep checking his phone. Also, I don't want to bring this up with him again as he mentioned last time that doubting him again and again will become toxic after a while and should trust him.
I don't know what to do? Should I let go of this act? I mean anyway I can't control his actions right?
Tl;dr: husband acting sneaky with his phone. What to do? Should I check his phone without him knowing or ignore?