Most Helpful Guy
"How do you know if HE loves me?" Simple, ask him, im sure its not that awkward since your both going out + he might just be shy.
"How do you know if YOU love someone?" You get that buzz around them, hard to explain, if you were a boy i would just tell you that boner = love.
ask yourself, do i care for this person?
the only person in the world who knows you the best is yourself.