I went into town for a few beers on a whim late at night with pals after a bbq. We got chatting to a girl and had good banter. I wasn’t even trying her and she started flirting with me asking was I single and was very keen on me. After a while I asked and got her number and a kiss on the cheek before she was dragged away by her friends to another pub. I texted her later that night / way to late to actually meet up and she replied with hey and then she asked can she come over but I replied too late.
I texted her “howdy Name :)” two days later. She then took two days to reply with “heya”

How would you gentlemen approach this and what would you text back? Or would you bother