Why on earth would I, or any sane human, think the less of a man for crying?
According to David Deida theory (finding God through sex)et al it is because some women want/need their men to be masculine so that they can be feminine. Feminine is the life energy, masculine is the channel for that energy. Feminists get all kinds of upset with this theory because they take it as boiling down to a women MUST have a strong man. Deida points out that strong Masculine NEEDS as strong feminine as well so all is balance, plus some males are feminine and some females masculine, so it is not strictly a biology thing.
Emotionally weak men screw with the entire masculine/feminine dance.
I like strong, feisty people, whether they are male, female or something in between to dance with, be friends with, or have as a lover. I don't make lovers of men I consider weak, or friends of women I consider weak. Being vulnerable is not something I see as a weakness. Strength to me is a complex of qualities.
I am a strong woman who happens to cry easily. Shrugs. I don't like it, sometimes, but it doesn't make me weak. Why the hell would I fall for some stupid notion that crying makes a man weak?
Whether a man cries easily or doesn't has very little to do with my assessment of his strength or attractiveness...except that, given our frequently noxious prescriptions for what men and women should be, I have a lot of respect for a man who is strong enough to express sadness, or joy, or being deeply moved, through tears. He's had the guts to stand up to a lot of traditional bullshit.