Warning:

This is very off topic!
I am really struggling here so I need some pixie dust.
My former Director and I had a lunch meeting today. My old boss (the Assistant Director) got a promotion to another area leaving an opening. My Director wants me to come back and is offering a healthy raise and lots of learning/development/advancement potential. She is retiring in 5 years and being the Asst will give me a really good shot at her job if the climate is right. When I worked for her previously it was good in terms of gaining knowledge and she was good at increasing my salary HOWEVER she has these emotional outbursts when she is stressed. Essentially she lacks a filter for her frustration. Now I NEVER experienced this personally. Others did and I heard two incidents in the 18 months I worked for her.
Sorry this is too long. I guess I'm nervous to go back but at the same time it is such a great opportunity. I love my current boss but essentially I have no where to advance to at my current job. I can love my co-workers and environment but it doesn't pay the bills or get me on a 7 day cruise either.
I guess I just need Pixie Dust to help me figure out what to do. I have to give her a decision tomorrow morning.
Thanks in advance
P.S. She scored points by saying I could start after my cruise