lwb - It appears that you think too little of yourself and too much of your husband. Hey, you are the "catch." You are the prize. You are the gem that your husband is walking away from.
Show her only that side of you. Have calm, cool confidence, knowing that you are going to SHINE no matter what happens.
NEVER feel like you are losing. Never. You are winning. Because you can hold your head high and be proud that you did your best.