In Edward Albee's The Zoo Story, why did Jerry decide to end his life in such a strange way?

I just saw "Peter and Jerry," last night (having seen the original "Zoo Story" when it was first produced in New York City) many years ago.

IMO . . . by rushing into the knife held by Peter, Jerry achieved the almost-orgiastic level of intimacy he craved.  He connected, finally, although in the most bizarre, savage way.  Taking pills or hanging would have been like a tree falling in the forest.