Edit: because a few comments make me worry that some are taking this seriously - this meme is a play on the type of hopeless dating posts you might find in less healthy corners of the internet. The joke is a suggestion that the real problem is that one man in the image has some sort of arrow-attracting superpower.
The reverse reason is also that the pink blobs will receive arrows from all of the blue blobs. Blue blobs just reduce their market value that way.