Is she getting jealous?

[Apocalypse]

When it comes to humans we are all different what motivates us, and intrigues us, and what excites us. that being said there are several option to weigh here.

• She realized she actually cared for you beyond a friend, when you were gone.
  
• She though of you as a good friend (A nice amount of females don't like to date friends)
  
• She is actually jealous
  
• She was afraid to tell you how much she cared about you because she might of gotten hurt before
  

In order to actually know what option is true you need to understand her and truly know her, you are the only one here who can decide if she is actually jealous.

Seems like you have that laid out nice ^.
And from what it seems she is jealous and wants you to start talking to her again.