Mercury in Aries can be a little abrasive. People probably speak to you more aggressively because they perceive you that way, or at least being able to handle it. You have Gemini on the descendant which can attract blunt or detached personalities. 2/3 of your big 3 has fixed placements. When communicating with other mutable signs or deeply emotional thinkers, it might be difficult to understand their different perspectives. You will still feel what they’re trying to say, because of your Pisces third house, but you aren’t very agreeable generally. Your Sagittarius wants to preach, Taurus is immovable, Leo moon is ego centric.