LC would be you best option if you ask me. But wait for her to start the conversation.
You plan sound good to me. It is ok to be friendly with her, but not more then that. You are not here to give her emotional support, and you are not a backup in case it doesnt work out with this guy.
Keep working on your own life…
A guy that puts his entire life on hold for for a girl = A needy guy = very unattractive