Ben Levi; No! I do not think Bais Yaakov’s are addressing the Shalom Bayis Issues.
I think maybe if the girls are Zoche to go to Seminary, then it they may have some training into what that entails, though not enough, but then again, other then some shmoozes in certaain Yeshivos, that is not mandatory, the Yeshiva boys are also lacking in the education of maintaining Shalom Bayis,
Proper classes in Chinuch Habonim V’habanos, isn’t either particularly addressed.