Bekleyenim is a fascinating word because it's a possessive form of a participle, meaning "my waiting one" or "the one waiting for me." It's not a common, everyday word you'd hear frequently.
In the context of the song, Aleyna Tilki repeatedly states, "Yok hiçbi' bekleyenim" (There is no one waiting for me at all). This highlights a deep sense of loneliness and isolation, making the word central to the song's emotional theme and very impactful.
Aleyna Tilki opens by stating the problem and then restating it, which is the trick of the whole song: "Yok hiçbi' bekleyenim" (There's no one waiting for me), and three lines later, "Bu yüzden yok hiç benim bekleyenim" (That's why I have no one waiting for me). In between she explains herself almost apologetically. "Hiç girmedim ki ben o kalabalıklara" (I never once joined those crowds). Nobody shut her out. She stayed away, and the empty room is partly her own doing.
The chorus is where she gets blunt. "Sessizliğin faydası yok" (Silence is no help at all), then "Bu duvarlar konuşmuyo'" (These walls don't talk), and then the line she comes back to six times: "Ama sen olmasan da olur" (But it's fine even without you). Said once it reads as strength. Said six times it reads as someone practising. The second verse gives away why the practice is needed, because "Öğrettin yalnızlığı" (You taught me loneliness) and "Bu şarkılar sanaydı" (These songs were for you). She finishes on a door closing rather than a goodbye: "Sesimi istediğinde duyamazsın" (You can't hear my voice when you want to).