Are female friendships emotionally deeper than male friendships?

I was talking with my boyfriend about friendships. When I go out with a girl's night out, it is much different than a boy's night out I think. We talk about feelings much more, whereas according to him guys just talk about sports and business mostly. I don't think that I friendship is real unless I can share my emotions and my friend can share hers. I think it is different with guys as a general rule. What do you think?

Are female friendships emotionally deeper than male friendships?
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