If now you cannot feel the motivational factor to do more than
say, then for now just take it easy and ease whatever tension there
is. When you are feeling 'better' and can really go for it and when
she is more receptive, then talk to her.
Coz no matter wat, you have to ask yourself this: is this
friendship worth what you are doing? If it is, then you will still
do it despite 'easier said than done'.
