It's definitely OK to check your significant other's phone
It is so weird to me that when people post about horrible or disrespectful things on their SO 's phones they now feel the need to add a disclaimer like "I was using their phone because mine died" and/or "I was on their account because I don't have one we look at funny things with theirs together sometimes". When people mention what they've found on their SO's phones, there are always a barrage of people saying everyone deserves privacy and you should never look through someone else's phone. Im sorry, that is ridiculous and naive. People lie, they cheat, they are a different person in comment sections (not everyone). Some people are dangerous, some have violent fantasies, some are disrespecting you behind your back. Do you need to endlessly go through their phone and read all text messages and open every app? Of course not, but if you have a gut feeling, baby look through that phone. Back in the day people had to leave their homes to have a double life, to have that affair, to talk horribly disrespectful of their SO's. Now its one "click" away.