I know it's only been three weeks, but (from experience) when a woman wanting space turns her head when you try to kiss her.. . It typically means she has moved on. She doesn't feel comfortable with you kissing her. . That's a bad sign after 3 weeks.

Personally, I would move on also. No need to sit around and wait. I suggest being single for a while, get comfortable with yourself... and move forward.

Sorry guy, you have been through, and are going through a lot, but no way would a reasonable healthy person want to commit themselves to an unhealthy person as yourself without being damned sure you had put the worst behind you. Respect your healing, but also, you must respect hers. Until you do, then you will never get what you want, and its unrealistic to think that 3 weeks is enough for her to jump back in he water with you. Swim on your own, and focus on you, and not rush, or pressure her with YOUR needs, or wants. That's just not fair even though you think it is.