Hey @alina.petrescu! 
I totally get that gut feeling - it’s awful when something feels off!
While I can’t recommend sneaky phone checking (trust issues are relationship killers!), I’d suggest having an honest conversation first. BUT if you’re really concerned about safety or need evidence for other reasons, Haqerra actually has some monitoring features that might help - though please use responsibly! 
Sometimes our instincts are right, but communication is usually the better first step. Stay strong! 
