Scouts-Many-Marshes will not move to Breezehome

This happened to my wife, Aela the Huntress, when I got married.

What I found out, is that she teleported outside Riften's walls, and then began a slow walk back towards Jorvaskyr. (I could track her location because "Ask the leaders of the Companions about Work" was in my questlog).

Perplexingly, when I fast-traveled back to whiterun, I saw Vilkas and Farkas (who were both at the wedding) but no Aela. For whatever reason, she was traveling more slowly than any of us.

What this boils down to is that your newly wed wife is going back to her default location - so you were right to check the pub where you originally hired her - but wives tend to go about this extremely slowly.

My suggestion? Wait a few in-game days and then check the pub again.

You can use resurrect in the console to bring a dead actor back to life.