You need to be VERY careful at this juncture. Be cool, do not rush things, do not get overly anxious. A few nights in the guest room or on the couch may be the way to go. BABY STEPS.. keep her wanting you.
My W and I separated for 1 week in May. After 7 days of being a part it was like a 2 month honeymoon. Lots of sex, romantic dinners, the works.
Month 3 ... the bullsh*t starts up again.
9/29 Separated 10/31 W files for divorce Turkey day ... Lake Placid spectacular... without the sex XMAS Time .. Heading to divorce court.
Looking back, we should have taken things VERY slow in May. Baby steps, marriage counseling, etc.
If we did that, I believe we would not be getting divorced.
Take it slow... she is going to be questioning whether she did the right thing in letting you move back in. Don't give her any ammo.