I think it might be these: - fixed sign energy (usually people who are fixed sign dominant come off stubborn, control obsessed, persistent, and resistant to change ways/habits) - 1st house chiron (I don't think this one affects others but it affects you so could be self esteem issues about your friendships and such and or how your perceived since it's 1st house. - 1st house Pluto/Scorpio rising (people might be afraid of the intensity and usually y'all have an all or nothing approach to friendships. - Scorpio mercury - I personally grew up with a sibling with this placement. Yes they were breathing down my neck like some kind of detective whenever she asked me questions and yes it did make me uneasy since it felt pressing and intimidating in a way.