u/Empty_Piece_7921

I (23F) met a great guy 3 months ago and we've been dating since. Yesterday he wanted to make it official, I slightly hesitated before I said yes to which he jokingly said "it's not like you have been dating other guys right". I told him no but I actually have been during this period

I don't even know why because he is exactly what I've been looking for, I don't want to start our relationship off on a lie but am afraid that if I tell him the truth he will break up with me, he is Dutch and I'm American so maybe this is a culture thing?

Is this my fault if we did not agree to be exclusive before this?

Really need some advice on what to do here I've been crying all morning because I feel so bad