9. “This is the first and last time I’ll ask.”
In this approach, you limit the number of times you would go through his phone to this once. If he sees that you are serious about making this the first and only time, he might be swayed and say something like “If it’s only this once, then….” This is effective if your boyfriend agrees to do favors for you when you ask, despite saying, “This is the last time!” However, even if it’s the only time, he might pull back if you check his phone too closely. Narrow down the items you want to check, such as addresses and messages. Moreover, if he’s clean after this one time, stop doubting him and trust him. Trusting your boyfriend will make you happier than always suspecting him.