Met a girl at a party took her home and fucked her and took her to work the next day. She asked for my number and texted me in the early evening and we chatted but I took 3 hours to respond to her last text. She then didn't respond till afternoon the next day (today). I don't want to get drawn in to a "who takes longer to respond" battle but also don't want to come off as needy so I'm planning on not replying today and calling her tommorow afternoon to set up logistics. Is this a good plan or is she more likely to not pick up because I didn't reply today. Would it be a better idea to call her this evening and set it up?

In person I'm definitely the A side meaning she shows more interest than me but over text it doesn't seem that way.. not necessarily the reverse but I feel like I lose most of my power