There is a Buddhist saying that your soulmate is suppose to make you feel peaceful, not to make you heart or anxious. If they make your heart race, they are not the one. I think this should apply to all areas of your life.
People who choose you and you both trigger each-other in good ways (spiritually, lovingly, personal growth) and make you feel happy and peaceful.
Trust the vibe you get, if they don’t make you feel calm let them go.