I'm sorry that you've had that experience, and I don't deny that it can and does happen, but it's not universal. Far from it. One of the things that really made me know that my now husband was the right guy for me when we were dating, we came across a young homeless man, and it actually made him cry. I saw that not only was my husband empathetic, he wasn't afraid to show it (which I saw as a strength). Lots of other women (but not all) feel the same. The more conservative and "traditional" the woman or the more insecure she is herself, the more she will feel uncomfortable with a man who shows his emotions. We've all grown up with patriarchal norms, and not everyone has yet transcended those.

But the real point is not whether or not men are allowed to cry in this culture in this period in time, the point is that it's mutable and not an inherent aspect of masculinity. There's really no such thing as "traditional masculinity" unless you are using that term to describe the traditions of the past hundred years or so.