You have to have hope. It's irresponsible to give false hope, which I think a lot of playwrights are guilty of. But I also think it's irresponsible to simply be a nihilist, which quite a lot of playwrights, especially playwrights younger than me, have become guilty of.
The way you give love is the most profoundly human part of you. When people say it's ugly or a perversion or an abomination, they're attacking the center of your being.