Yet another good sign! He put his ring on...! You really have him thinking now, orchid, and you want to keep him thinking... so while I'm certainly not an expert, and maybe someone else will jump in here for you, I believe 'dropping the rope' means that you let go. You realize you have no control over H's actions anymore and really never did, and you let him go. You get busy with your own life, don't contact H unless he contacts you first, no R talk unless he brings it up, you validate, be a friend, don't pursue, etc.
That said, you were doing all of these things before H came to visit you. It's just you've had a very unique experience with H at your place for the last few days, he's witnessed your changes which were made for you, not for him, and he seems very confused... I love it! So, when he leaves tmrw it will of course be sad! But then you get back to dropping that rope, getting on with your life, and I wouldn't be surprised if he started to pursue you more... you have him thinking and that is perfect! Maybe after he goes, you should re-read some of DR re: how to handle the WAS that starts warming up... but what I recall is to take it super slow and not push.
