In a post shared to the r/TrueOffMyChest forum, the user explained his fiancée has “changed her tune” about their open relationship despite “demanding” it earlier this year.

The post has received over 9,000 upvotes, and many Redditors are saying the same thing.

The original poster (OP) wrote: “She told me she wanted to explore a side of her and felt safe doing it with me. I was adamantly against it, but she said she contemplated leaving me and I broke down. Like a moron, I allowed her to bully me into opening the relationship.”

“It’s been six months and now her tune has changed entirely. At first, she was ecstatic. She almost instantly found a guy whom she hooked up with. I’m almost 100 percent sure she was planning on having sex with him anyway and this was all just a way for her to do it above board.”

“I guess it didn’t work out though, because after a month he was gone, and as far as I’m aware she’s not found another partner since. At first, I planned not to try and find another partner. But, my resentment towards her and an opportunity arose, and the next thing I knew I began to see an old friend from college who always seemed to have a crush on me,” he said.

The OP explains his partner “resented every moment” he was with someone else and he could see it “eating her away.”

He added: “I knew it hurt her ego when I would come home from my casual fling with my friend. She never said anything though. Until now. Last week, another opportunity arose.”

He explained an old co-worker asked to sleep with him and he agreed. But when he told his fiancée, she broke down crying and requested to close the relationship again as she felt “unloved and useless”.

He explained: “She tried to use the same tactics she did before. She’s gaslighting and using emotional manipulation to try and get out of this. Last night she tried to bully me again into closing the relationship. I told her I would think about it but right now this is the bed she made and she needs to learn to sleep in it.”

As a result, the fiancée rang her mother and the original poster woke to “dozens of texts from her parents telling me I’m horrible.”

He ends the post by stating: “I’m going to call off the marriage this week and break up with her. I’m going to continue seeing my old college friend because at least she’s not a lying manipulative b**ch.”

In April 2021, a YouGov poll of more than 23,000 Americans found that about a quarter of Americans say they would be interested in having an open relationship. The study found one in three men to be keen to date multiple people at once.

The poll also revealed millennials are more likely than any other generation to express interest in having an open relationship, by a notable margin.

The results revealed that 41 percent of 26 to 41-year-olds would be interested. In comparison, just 29 percent of Generation Z would be interested in an open relationship.

Racking up more than 6,600 likes, one user said: “She brought it on herself, and if others want to call you horrible, tell them why you’re open in the first place.”

Another said: “Honestly, breaking it off is the best thing you can do at this point. Nothing can be truly salvaged, even if you wanted that, which you clearly don’t. Tell them all what really happened. Don’t let her trash your name.”

“It’s actually quite interesting, how many times this exact scenario plays out with both men and women who initiate and then instantly regret their decision. 100 percent of the time it ruins the relationship. You cannot ‘open’ up a relationship based entirely on selfish reasons to test the waters out; then get butt-hurt that your significant other found someone while you’re having trouble. This is as old as history itself,” commented another.

Newsweek reached out to u/No_Comment6353 for comment. We could not verify the details of the case.