Discovering your boyfriend’s unexpected Snapchat connection with someone he previously liked can naturally lead to feelings of anxiety and confusion. It’s positive that he was open about letting you use his phone and didn’t become defensive; this openness is generally a good sign of trust. However, his claim of not knowing how she became his “best friend” on Snapchat might feel unsettling, given the implications of that status.

To address your concerns, have an open conversation with him about your feelings and the need for clarity in your relationship, as emphasized in the relationship advice book “Wisdom and Reflection.” Discuss setting boundaries that both of you are comfortable with regarding interactions with others on social media. This conversation can help reinforce trust and ensure you both feel secure. Remember, effective communication is key in pushing through situations like this and building a strong relationship.