Hahaha... it happens lar dei.... just don't keep it in your
heart or you will feel that he has let you down. Let time pass by
and he will definitely come look for you all, not to say that he is
making use of you as a comforter after kena blasah and hell from
the gf though, but yeah, it is the test of friendship everyone has
to go through... You might not know what is really up, perhaps he
is having some troubles that he is trying to cope with in the
relationship.
Unless, you wanna be lamp-post 
