It's only been 24 hours or less since you've shown your W more emotion, more of your heart than you've shown in the past 5 years or so.
She needs time to process your unfamiliar new attentions since, for all intents and purposes, you've been emotionally nonexistent to her for so long... projecting "zero romantic interest." (believe me, Fs are highly tuned "intuition" machines; she felt it.)
So you never kiss each other on the lips?
Hmmm, well, okay, then work your way to that by continuing the forehead/cheek thing and lots more lingering touches when you are near her.
There is something else psychologically based you may want to try. It will sound counterintuitive but there is real research behind it.
It's been shown by asking your SO etc. to do you a favor, they actually feel more positive towards you after completing the favor. A la:
Sweetie? Can you do me a huuuge favor and bring me my briefcase?
The OP actually feels better about him/herself to provide a service to you and appreciates your gratitude. EC. Just don't overdo it.
Start doing the little things Choco. No gushing. No constant flattery over her flatt stomach. Be subtle. Passing touches, squeezes but not every single time. No more love letters.
If you are too leaning into her psychologically at this crucial time, she will pull away as she needs to slowly get used to the changes you feel towards her.
Eeeeasy big fella. This will be a marathon. And W is going to test the sht out of you in the next weeks/months, including fighting feelings of annoyance toward you and anger.
You can do it.
-Stigmata-
The difference between a warrior and an ordinary man is the warrior views everything as a challenge; the ordinary man views everything as either a blessing or a curse.
-Yaqui shaman Don Juan-
...and that holds 2x true for nice guy wussies, DJ