I started talking to this guy for a couple months and we hooked up a couple times. We then stopped talking, but i see him out at the bars sometimes. This past weeekend my sister and I went out to the bar and ended up sitting at the same table as him. (My sister does get more guy attention then me as she is prettier than me) He was flirty with me at first but then started making conversation and being flirty with my sister... almost like he was trying to make me jealous. Do you think he was "flirting with her" to make me jealous, or do you think he is into my sister?
He recently followed her on instagram... but doesn't follow me,.