Right before a wedding is when the reality of it all hits. All the thinking culminates at that point where the actual ACTION of getting married is now a NOW REALITY.
Sometimes these things that happen right before the wedding can be a little test in thar it is the last chance to think it ALL through before the committment is actually made. Fights, arguments & all just sort of "clear the air". Making these life decisions should not be taken lightly & there is a lot more involved in relationships than just love. That needs to be there above all else.
I really think this is just a good chance for you both to deal with issues so that your resolve for your marriage is even GREATER. Kinda a strengthening process you are going through.
Very excited for your wedding commitment to each other & a nice RELAXING time together to bond even deeper after all of this.