I'm really sorry you're going through this. It's very hard to be in the position of wanting something more from a relationship than someone else is able or willing to give.
You can't predict if your friend will feel ready to embrace a full relationship in the future. So as Ken wisely spoke of, the best thing is ask yourself what you want and the impact of the present circumstances on you.
How do you feel being in this in-between place? How comfortable/uncomfortable is it? How is it affecting the rest of your life? How much does it dominate your thoughts or your time? How is it affecting other choices in your life? Are you alright being in a state of limbo for a certain period of time -- a week, a month, 2 months, 6 months or is there a certain time at which being on hold as Ken says would feel unacceptable? What are you getting out of the limited contact as it is right now? What's the cost to you of it?
If you can answer some of these questions, you might be able to answer the question if remaining in contact is healthy.
best
gf