Overbooking

[Becky]

[Overposting] on Facebook. An [ego] [disorder] leading people to believe their friends want to hear from them more than once or twice a week.

[Hina Muqadas]

making dates with multiple people for the same night to meet you at one place [assuming] that some will [cancel] or not show and then having all of them [show up].

[Tanya Shivari]

present participle of overbook