Aitah for rejecting my friends request to have an open relationship with my husband?

Lisa’s declaration of love for her friend’s husband and her proposition for an open arrangement to accommodate her desires created unforeseen strain. The woman, however, turned down the suggestion, reiterating her dedication to a relationship with only two people.
Lisa countered by calling her self-centered and claimed she was gossiping to their mutual friends, creating friction within their circle. Despite her husband’s support, the affair has stirred up needless conflict. Read the original story below…
‘ Aitah for rejecting my friends request to have an open relationship with my husband?’
I (30F) have been married to my husband (32M) for five years. We are parents to two wonderful children (5m and 6f), enjoy a robust connection, and are content in our marriage. Not long ago, a “friend” of mine, Lisa (29F), admitted to me that she has begun to harbor romantic feelings for my husband.
She confessed to being drawn to him, expressing admiration for our connection, and then inquired whether we’d be open to exploring a non-exclusive dynamic so she could also be with him. I was taken aback and refused, clarifying that my husband and I are dedicated to our bond and have no desire for an open arrangement.
Lisa became angry, labeling me selfish and inflexible. She claimed current relationships require adaptability and that I was preventing her from experiencing joy. Since then, Lisa has created distance between us and has been gossiping within our social circle, implying I am excessively protective and manipulative.
This has caused a lot of tension, and some of our mutual friends are now taking sides. My husband is supportive of my decision, but I feel guilty for the drama it has caused. So, AITA for rejecting my friend’s request to have an open relationship with my husband?
These are the responses from Reddit users:
FirefighterLate2829 − Forgive my language here but Lisa sounds like a stupid b**ch
TarzanKitty − NTA Tell the friends that are on her side to let her f**k their husbands.
TheOtherAccountIUse9 − Your husband does NOT want it, you and your husband are happily monogamous, end of discussion. She’s not your friend she’s an attempted homewrecker, they are not your mutuals they are her flying monkeys. Cut them out of your like if they think this is acceptable.. NTA, obviously
Status-Pattern7539 − NTA Group message everyone, as you know she is lying to them. “Hi everyone, I thought I would clear up some things as everyone is now talking about my relationship or how I’m “controlling”. Telling Lisa that she cannot sleep with MY husband is not controlling.
Informing Lisa that my spouse and I are in a committed, exclusive relationship is not an act of dominance. Anyone who wishes to offer their significant others for an open arrangement with Lisa is welcome to do so. However, my spouse and I prefer to remain in a monogamous relationship.
He isn’t, nor has he ever been, interested in or drawn to Lisa. We can’t fathom where she got the notion to force herself into our relationship, but we’re not giving such a ridiculous thought any consideration. This is the last time I’m addressing this absurd demand.
introextromidtro − This can’t be real. It’s literally “my friend wants to f**k my husband and I said no, now I feel bad for creating drama” Like your sense of boundaries and self-respect cannot be so fucked that you’re actually questioning your decision on this…
Starry-Dust4444 − This seems fake.
Prahasaurus − These posts are so stupid. Do you really think you are an AH for not allowing your friend to sleep with your husband? Really? I highly doubt it… Enjoy the upvotes.
notAugustbutordinary − The only way that you could be the AH in this situation is if you don’t tell every member of your social group what Lisa did. At present you are allowing her to dictate a false narrative. Stop her from doing that. Ask any of your mutual friends if they want their partner’s sharing Lisa’s bed?
goblinillionaire − NTA, serious, open and shut. Edit: I should explain more. Your friend wants to have an affair with your husband and make you a cuckoldess.. Send her a link to the tinder app.
nicog67 − This has to be fake
Was it incorrect for her to establish this limit?