The great thing about friends is that sometimes they are wrong. (Except me I will NEVER lead you astray!
) The good news is that friends will ALWAYS offer wisdom and advice but ultimately you are the one who has to decide whether to take it or not.
Squirrley gave me some great friendship advice - you have to trust YOUR gut and your instincts, only you ultimately know what is right.
I also believe that communications is very important and you and Betty seem to communicate very well. If she felt like you HAD to be ENGAGED or lose her forever I'm sure she would've told you that and then you could handle that according to what you were feeling.
Sounds like you have a GREAT weekend planned - enjoy each other and the rest will take care of itself.