string along

/S T R IH1 NG AH0 L AO1 NG/
verb
  1. 1

    To keep somebody falsely believing that one has certain intentions.

    โ€œShe's been telling me for ages that she wants to meet up, but won't give me a date. I'm convinced she's stringing me along.โ€

Source: https://en.wiktionary.org/wiki/string%20along