She was funding her broke boyfriend while he sent $600/month to 'help his sister.' One conversation with her exposed who was really getting the money
During a phone call with the sister-in-law, OP mentioned that she must have been comforted by the money her brother sends every month
On one recent night, a woman (u/Fancy_Incident5635) put together a carb-rich dinner to fuel herself for a difficult conversation with her boyfriend, a conversation she never imagined she’d ever have. It was only an hour before he arrived, and she would need to confront him about something shocking she had found out about him. Ever since they moved in together, he has been on a tight budget, so she has contributed $600 a month from her savings. For all these months, she believed that this $600 went to her sister-in-law (SIL), until recently, when she spoke to her on the phone. At one point during the conversation, her SIL accidentally revealed that she had no idea about the money they were talking about, according to her August 14, 2026, Reddit post, which has racked up over 36,000 upvotes.
Found out why my boyfriend has been “helping his sister”
by u/Fancy_Incident5635 in GirlDinnerDiaries
Best brother ever
The couple had been in a relationship for the past three years. He was surviving on bare bones, so when they moved in together, she helped him cover the security deposit. Every month, she contributed $600 from her savings, which he was sending to his sister. Or so she believed. But one day, during a phone call with the sister-in-law, OP mentioned that she must have been comforted by the money her brother sends every month. And that was when it all unraveled.
Spilling the beans
Her sister-in-law accidentally blew the whistle by revealing that she didn't even have the foggiest idea what money she was talking about. “She looked at me like I was insane and said he hasn’t given her money in years,” the woman described. Turned out her boyfriend had been sending the monthly $600 to his ex instead. Although she hasn’t updated yet on what happened next, her case is a classic example of what financial infidelity looks like in romantic relationships.
Pulling the wool over partner's eyes
According to a Bankrate survey, more than 2 in 5 U.S. adults (43%) admitted that financial infidelity is just as bad as physical infidelity in committed relationships. “It could be argued that financial infidelity is actually more detrimental than the romantic or sexual infidelity that we have spent so much time researching in the past in psychology,” Hristina Nikolova, a behavioral data scientist at Northeastern University, shared with Northeastern Global News. A survey by the U.S. News & World Report indicated that nearly a third of couples have experienced financial infidelity in their relationship. Among those who commit this type of infidelity, 15.8% do so to help someone else. Whatever the reason, though, discovering financial infidelity can leave a partner feeling just as betrayed as they might after being cheated on romantically.
Sounds like child support
Reddit readers whipped up dozens of speculations and scenarios about the situation. Some speculated that he was giving her the money every month because they had a secret baby or perhaps shared a car. Others are still eager for an update. u/ultrawhiner remarked, “$600 sounds to me like child support.” u/Galaxyonohrionsbelt commented, “Yea, bet he already took a beating from his sis, and is terrified to come home. Good.” u/asparagusklutzy2596 said, “Just think what you could have used that 600 bucks for every month.”
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