What an odd thing to say to someone. I think it's obvious she has some issues and as you said, she has had failed relationships.
Beauty is in the eye of the beholder is so true. If one is looking for superficial beauty that is only skin deep they may find the inner person is very ugly.
It sounds to me like there is some jealousy on her part. It's also a dig at you in a way. That is something I have noticed about some people, when they are jealous of someone they will say hurtful things. How very sad for this lady that she cannot find happiness.
I'm happy for you that you have the love of your life. You are happy and that's all that matters.
