This question baffles me.
No one has ever asked me what I would do if Matt changed his mind, but I’ve read of many parents of gender-nonconforming kids being asked this relentlessly.
I don’t think a person could meet Matt and then ask me what we would do if he “changed his mind”. There isn’t a fiber in his being that suggests he’s anything other than male.
But, I love Matt. I love him immensely.
If he changed his mind, about being trans, I’d do everything in my power to help him feel loved and safe.
Would it be easy? Absolutely not. Generally speaking I don’t find myself attracted to feminine features. I love beards. I love treasure trails. I love deep voices. I love tough, strong men. But would I still want to be with him? Yes.
I would do everything in my power to help get him back to a place where he feels comfortable in his body.