What does the なる and the と mean in this sentence


What does the なる and the と mean in this sentence?

> でも男のことに **なると** 、どうにも弱いとこがあってさ…

From what I have learnt so far:

  * と can mean "and", eg. 私は水とジュースを飲んだ

  * と can be used to imply an inevitable outcome, eg. 六時になる **と** 、太陽が見える

  * と can be used to quote a thought or something that somebody said, eg. 「強くなりたい」 **と** いったでしょう？

But it seems that the と in this sentence doesn't fit any of these usages.

As for the なる, it usually means "to become", right? But in this case, it says
男のことになる. 男のこと means "about guys", and that is not something you can
"become"...




Xになると and Xとなると are synonymous set phrases that mean "when it comes to X..."
or "as for X..." They have nothing to do with something becoming something
else.

