A lonely speaker keeps sending text messages to someone they miss, "How long I do not see you," and waits for a reply. Each time the phone chimes, hope rises, but the messages are only ads for songs, radio, lotteries, or marriage websites. The speaker's sorrow is stated plainly, and it hurts because the phone promises connection and delivers junk.
The middle stanza lists what the absent person loves: wandering the mall, eating ice cream on the auditorium steps, gossiping, sitting quietly in a metro station with songs on her phone. The details feel warm and ordinary. In the last stanza the speaker repeats every one of those activities alone, visiting the same kinds of places, as if trying to keep the other person present. The ending trails off with "if...", leaving a wish unfinished. The mood is quiet, wistful, and a little awkward, which suits the plain, slightly broken English. The poem never says what happened between them, and that silence is part of its ache.