SSLP don't call her for a day, if she's interested the girl will worry and wonder why you suddenly stopped, she might break easy and call back the same day or will try hold out. Don't call her for another day, just don't call her, who the fuk is she man your SSLP! she'll phone back and show serious interest.

Girls don't like predictability, she'll get used to the 15 calls a day, just relax, play some futbol in a park or even better the beach and make sure its near hot girls then get them to join in and show off your skills and they'll be amazed and be calling you 15 times a day and this other girl will get jelous, then you'll have a choice of jelous girls who want to fuk your brains out, mission complete