Lyric discussion by Wisemeister 

Cover art for Symphonia IX (My Wait Is U) lyrics by Grimes

To me, this song at its core is about unrequited love. Or rather, being in love with someone who can't feel love properly. For someone to be in "true love" they have to have access to all their emotions. Many people don't and especially many men. If you can't cry, for example, your emotions are stuck and suppressed and you can't therefore be in love. So she wants the subject of the song to cry so that he could love her fully. Being in love, she knows, is "trying" (as in, hard to endure) and he is unable or unwilling to make the risk. She of course has no reservations about the relationship and though the longing is painful, she seems content to wait for him to change.

My Interpretation