My experience of being emotionally vulnerable around women has only led to manipulation of said vulnerability and more condescension from the woman. It throws off the entire dynamic of the relationship and you can even feel the total lack of care from her. This doesn't just go for romantic relationships, even in familial relationships as in mother/son, brother/sister, etc.

Everything goes much better when the man is detached and calculating. The woman is much more happier as a result and feels more secure in the relationship.