Question ladies

Shantavien

My fiancé has started getting messages from who he say it’s his bff but he has never been known to have a BFF he has never had a contact saved as bff in his phone and now all of sudden it’s there and he say it’s his homeboy but I keep thinking to self and having a feeling it’s not I keep asking my self what man text another man at 12 in the morning, so my question is...What should I do? And should I jus follow my gut feeling?