how do your SO cope with stress?

My SO cuts me out less affectionate doesn't even look me in the eye or barely talks he walk around with a mean attitude and I'll ask him he said he's stressed he's a Gemini Im a Leo ive never dated a Gemini before so I thought he was just having his period days it hurts me because all I want to do is help him and it feels like he takes everything out on me 😢😥😪😓