falloffs?

so something that i really cant comprehend is why guys are such falloffs?
i mean how hard is it to return an IM or a call saying, "no something came up." I mean its really not that hard at all. Like waiting allll day to see some one that later just doesnt show up is soooo heart wrenching. Like, ugh... and i've noticed that their repeat offenders. multiple guys are do this too. idk i wish they could just think what if the girl im standing up would be my mom. ughh

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