Loser would be an insult to all the other losers. That guy is way more indecisive than the other harem manga MCs. Rito from to love ru at least had notions of who he really wanted to be with(after some time of course), Keita from kissxsis at least has a bit more brains on who he has preferences on (even though he doesn't know it yet, cuz he is a pure moron), and many others as well are way better than this stupid. If I remember correctly he and his childhood friend were in a relationship at some point which got dissolved by the pact they are all under (product of their stupidity fromgetting tricked by the other girls.