Hello girl 1976,
I just want to say welcome! Hope you aren't overwhelmed with your wedding planning.
I may not be at your stage in life of being engaged yet.
However, I wanted to say I think I came and found this forum at a stage of my relationship just like yours. Somewhat similar 'discovery' that brought me here.
For me, one way if you believe that your man treats you well and respects you I would say you may need to find some time to sit down and talk this through with him. There may be underlying reasons behind all this. If he really treasures what you have I would say he would try to understand and see where you are coming from.
I feel it is better you do this before you move on to your next stage of your life with him.
Bottomline is, whenever you feel like you don't know what to believe anymore, just know that we should learn to love ourselves first and that there are many things beautiful about our life beyond the relationship. I hope this helps and I sincerely wish you the best.
Big hugs!