Facebook Questions

[Lochtsa]

I am new to Andriod and having been reading alot in the last 24 hours. I have a couple questions I thought someone may be able to help me with.

First here is what phone and firmware I am using:
LG Apex
Firmware 2.1 Update1

Now onto Facebook:
Version 1.3.2

I am using the facebook app, not the widget.

Questions:

When I go to FB, I log on and then I have a to decide to sync. Once I go thru that, I am on FB and it works fine. When I am done using the APP, I log out.

When I decide to go back on FB I have to answer the same sync question everytime. I do not want to stay on FB all the time because of privacy.

I want to simply log out when I am done, and log back on when I want. I do not want the app running and refreshing all the time.

Is there a way to log in and out like on your PC and not have to answer the sync questions everytime? In contrast, do I have to leave the app running in the background, by which, anyone can simply click the icon and have access to my Facebook?

I just want to be able to log in and out by entering my password and be done. Any help is appreciated.