You are so enthusiastic about the person you like, the object you like and the person you like. It's not just the beautiful girls in the supermarket who are interested in pig's trotters. Anyone, anything, has the same enthusiasm for the people they like, the things they like and the people they like!
I don't know if you envy her for being a pig's foot, her enthusiasm for pig's feet, or her beauty.
In fact, all this can be realized with money, depending on what stage you are in now.