OR, are you meaning that after 2 years he is still dating around? , you make him nervous as hell! You can also tell them how you feel and see what their response is.
26 Very Obvious Signs a Man Is Attracted to You Sexually & Wants You
Women's flirting methods and displaying attraction tend to be less overt than men's, although research has shown that women are more attuned to picking up on signs of attraction from men.