friendship clash

I had one of my best friend say she’s over with us (my husband and I) after I asked her for money she said she’d contribute towards our rental this month.
It’s bringing a lot of thoughts and emotions and I’d like to be able to talk it out with her but I’m having a hard time to separate what’s useful and what’s not.
We’ve been friends for over 7 years and it really hurts me that she’s ready to give it all up just over this. And maybe it’s not just over this… but she hasn’t mentioned anything else.
How could I use the model to help me sort everything out before reaching out to her?