When should I, Or how long should i wait?

Well me and my "gf" broke up almost a week ago....But actually it don't honestly seem like we broke up i mean we still like each other and what not.......But like We dated for about 2 months...and usually b4 we get off the phone and go to bed i would be like " Good Night, Don't let anything bite....and MUAHHHH" usually she would do it back...But last 2 times i did it...she didn't do it back so....And i got her a Necklace for her birthday...And she is still bringing me to the Brad Paisley concert for mine....and she was like Damn i still gotta find u something for Christmas...and i'm like i went to get a hoody and they didn't have the Fox racing on i wanted and she was like thats wat i was going to get u im like really? she was like yeah...but if i get u a hoody it would be from AE or some place...But any way how long shold i wait to ask her back out