My son came out as Asexual

Hi. I'm the father who made a post back in September about my son(18 now) coming to me and my wife because he had sex and didn't like it and he said it didn't feel right. My wife said some things that were kind of insensitive about him needing to like it so he can have grandchildren and I think it left him more confused. After the advice I got on here I talked to him and he said he wants to find someone and have a relationship and stuff he just doesn't want to have sex. I had printed off papers about being asexual and gave them to him but also let him know he doesn't have to decide right now and he can change his mind. We didn't really talk about it much after that. I didn't ask anymore because I didn't want to pry. Well today he came out as Asexual. I let him know I'm proud he's figuring out who he is. My wife isn't really happy about the whole thing, but I think in time she will come around. He seems a lot happier and if there's anyone Asexual maybe a little advice on how to support him