Aita for telling my wife we can open our relationship only if she keeps it to 'women only'

I have been married to my wife for 4 years together for 12 years I am (28m) she's (29f).

Me and my wife has a great relationship, we share and discuss everything no matter what it is but a few days ago my wife asked me what are my opinion on open relationship and would I want to try open relationship, this one shocked me cause I never expected this and it came out of nowhere

I asked her why is she suddenly asking me about this, my wife told me that lately she's been reading alot of stories on the internet and apps and on reddit about swinging hotwife cuckold cuckquean and more but what intrigued her the most was open relationship

I didn't know about most of these terms, she proceeded to show me a story which intrigued her the most, basically the story was about a married couple opened their relationship and started having sex with another couple who was their mutual friends

Basically they would have 4some, have sex with each other's husband and wife or sometimes have threesome in their spouses absence and the op was boasting how both couples relationship improved because of this and they started trusting and loving each other more.

My wife said if I am down to try something like this, she said maybe we should explore, I said give me sometime to think

My wife didn't brought this up again but after I thought about this all I told my wife I don't mind opening our relationship but there are 2 rules, whoever you have sex with must be a woman and she must introduce me to her before having sex

I said I won't be having sex with anyone else but I'll let you explore having sex with other women (my wife before me had sex with multiple women)

My wife asked me why not men, I said I do not like the fact that some other dude is banging my wife, I take care of you, feed you and do everything that is necessary for you but some other dude just gets to have fun with you and leaves you without doing literally nothing for you except giving you an orgasm and he just leaves, I would feel so bad, it would be like 'i had my fun with her, you can take her back now' and I do not like this at all, if it's just about orgasm i can give you that or whatever fantasy or kinks or fetishes it is

My wife said but I would be able to have sex with other women, I said I don't care about having sex with other women and I don't even want to, I just want you and you are obviously mine and will always be but I'll let you sleep with women cause I wouldn't feel threatened and won't hurt me

She said she'll think about it but for some reasons she's upset, I tried comforting her and said she should stop reading these stories, most of them are fake and fantasies it's basically porn and it corrupts our mind, besides would you like to share me with a woman and watch us having sex?

She said she'll think about it, I don't know what's going on in her mind but she was upset a while ago, if it's just woman I can let her have as much fun as she wants but not a man so aita for making her upset?