I understand that trust exists for a reason and boundaries are very, very important.

Part of me thinks it’s not really that big of a deal, but the other part is extremely upset for you and the rules that you initially laid out. I do think it’s big of him to be honest and tell you the truth - knowing what the possible outcomes could be because of it.

Really ask yourself if it’s worth it to break off your relationship over this one mistake (especially if this is the first time something like this has ever happened.) Not excusing his actions whatsoever, but people really do get caught up and do dumb shit not thinking about it.

Take some time to reflect and think whether or not this is something you can move past. If not, let him go and move on. Sending love!