My son has told me he is gay HELP !!!!?

I had a feeling of this for years, lastnight he had friends over, he was drunk and blurted the whole thing out ... He even told me he had been seeing a guy and is in love with him ... I cant tell my husband because there will be war ... I pitty him, but i denied it ... told him he was drunk and to enjoy his night ... i found his phone today, text messages from that guy again, the guy is in spain until august, he loves him, i know he does, the texts are so intense and really they show feelings for eachother, hes just 19 the guy hes seeing is 22, ive seen his facebook, hes hot and what not ... what can anyone offer me as a mother ???? PLEASE HELP !!!!!!???