What am I supposed to believe if my ex girlfriend broke up with me due to my apperance?

So my ex girlfriend broke up with me because of my personality she felt she could do better looks wise and was only with me for my personality. My girlfriend was about average in looks she really didn’t do much to take care of herself and was overweight. The strangest stuff has started to happen though after this breakup I have noticed women that are in shape and could be 7s or 8s checking me out so what do I believe because this has been massively confusing. Some of these women see me out with my dog and smile at me

What am I supposed to believe if my ex girlfriend broke up with me due to my apperance?
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