If a friend or loved one were to come out as gay/lesbian/bisexual/transgender/etc. to you, what can you say to let them know they are loved and supported by you?

100%

I would not treat them as if they're a different person, because they're not. They're the same person I have always known and loved. I would assure them that nothing will change, and that I will stand by them when ignorance gets in their face. I'd also let them know that they deserve to love whomever they chose, and that the person they decide to love will be lucky to have them!