Someone grows as they go through life and they realize they now have more understanding and more compassion when it comes to who other people are and who those people love.
An example was expressed in this comment:
I'm a friend who reacted badly because I liked the guy and found out about him and his niece. That was ages ago. I understand now but I don't know how to repair that friendship. Any thoughts?
I'm assuming you're not talking about the specific people in that interview. I don't know you, and I don't know the guy, so I can only give generalized advice. Feel free to contact me directly for further consultation.
I'd go see the guy in-person, if possible. Ask him when and where you can meet him "because I owe you an apology." You two should either meet alone or with his niece; nobody else should be along. For everyone's comfort, it should be somewhere "public" but where you can get out of earshot of other people.
Get to it as soon as you can. Say something along the lines of: "I owe you an apology for how I reacted. I did some thinking, and I realized that you both have the right to choose who you're with. If you can forgive me and accept my apology, I'm here for you."
I'd go see the guy in-person, if possible. Ask him when and where you can meet him "because I owe you an apology." You two should either meet alone or with his niece; nobody else should be along. For everyone's comfort, it should be somewhere "public" but where you can get out of earshot of other people.
Get to it as soon as you can. Say something along the lines of: "I owe you an apology for how I reacted. I did some thinking, and I realized that you both have the right to choose who you're with. If you can forgive me and accept my apology, I'm here for you."
That is vague enough that if someone is somehow listening in, there's nothing that incriminates them.
It's best if you allow him/them to react. They might need some time. Their reaction might not be what you hope it will be. On the other hand, it might turn out great for all three of you. Please understand they've probably had to hide their relationship, deal with bigotry and discrimination, and lost other friends and family over this, so it can be very difficult for some people to talk about it.
Don't make promises you're not going to keep, like telling them they can talk to you about their relationship or act like an affectionate couple around you if you can't handle that.
Do tell them you won't out them to anyone, and be sure you don't.
If it isn't possible to see him/them in person, then do it by phone call or video chat; some way that will feel sincere and they can hear your tone. But again, while making it clear you are apologizing and you are now supportive, be vague enough with your choice of words so that if someone is overhearing it you are not incriminating them or getting them to incriminate themselves.
Please let us know how it goes.
You might want to to read this:
How to Be An Ally to Consaguinamorous People You Know
Don't make promises you're not going to keep, like telling them they can talk to you about their relationship or act like an affectionate couple around you if you can't handle that.
Do tell them you won't out them to anyone, and be sure you don't.
If it isn't possible to see him/them in person, then do it by phone call or video chat; some way that will feel sincere and they can hear your tone. But again, while making it clear you are apologizing and you are now supportive, be vague enough with your choice of words so that if someone is overhearing it you are not incriminating them or getting them to incriminate themselves.
Please let us know how it goes.
You might want to to read this:
How to Be An Ally to Consaguinamorous People You Know