Maybe you have a history of cheating that’s why she is accusing you of that. Being honest on what you are doing usually stops all the accusations but it’s different when you have a history of cheating because everything that you will do is obviously suspicious for her. Be a man and let her watch you for significant amount of time to make her appreciate what you are doing.
Not about cheating have never cheated on her before, but it's just jealousy and finding a way to deal with it,
She has access to my phones we share same password, and anytime am on this platform I pay maximum attention, and maybe she needs me to gist with her and the rest after have already done it, if I say no then there is a problem.
Most times when I drop the phone if I notice she's not happy I might end up not touching the phone again till maybe two days after and I don't like that, she won't just understand.