u/Horror-Variation-857

I (27M now, 21 when this happened) used to live with my older brother “Jake” (36M now, 30 at the time). At the time I was dating “Emily” (21F) and we had been together for 3 years.

The three of us were around each other constantly because we lived together, and I trusted both of them completely. I genuinely never thought I’d have to worry about my own brother doing something like this.

Back in college I got the chance to do a 2 month study abroad program overseas. Before I left everything between me and Emily seemed normal. My brother was helping me get ready for the trip, driving me to the airport, acting supportive, etc.

When I got back though, something felt off almost immediately. Emily was acting distant, my brother was weird around me, and eventually I found out they had been sleeping together while I was gone. Not after we broke up, while we were still together.

The part that messed me up the most was that neither of them seemed genuinely sorry. Emily basically said she couldn’t help who she fell for. My brother’s actual response was that he “deserves to be happy.” No real apology, no acknowledgment of how badly they betrayed me.

Then they officially started dating after everything came out and stayed together for about a year, which made every family gathering awkward as hell. Some relatives thought what they did was unforgivable, while others kept telling me to move on because “they fell in love.”

The issue happened recently at a family dinner. Someone brought up how Jake and I “used to be so close,” and I said honestly that I don’t think I’ll ever look at him the same way after what happened. My brother got angry and said I was acting immature and trying to punish him forever over “one mistake.”

I ended up saying that cheating with your younger brother’s girlfriend while he’s overseas isn’t a mistake, it’s a choice, and that I didn’t owe him forgiveness just because time passed.

Now some family members think I made the dinner uncomfortable and should’ve kept my feelings to myself instead of calling him out publicly.

AITA?

I (27M now, 21 when this happened) used to live with my older brother “Jake” (36M now, 30 at the time). At the time I was dating “Emily” (21F) and we had been together for 3 years.

The three of us were around each other constantly because we lived together, and I trusted both of them completely. I genuinely never thought I’d have to worry about my own brother doing something like this.

Back in college I got the chance to do a 2 month study abroad program overseas. Before I left everything between me and Emily seemed normal. My brother was helping me get ready for the trip, driving me to the airport, acting supportive, etc.

When I got back though, something felt off almost immediately. Emily was acting distant, my brother was weird around me, and eventually I found out they had been sleeping together while I was gone. Not after we broke up, while we were still together.

The part that messed me up the most was that neither of them seemed genuinely sorry. Emily basically said she couldn’t help who she fell for. My brother’s actual response was that he “deserves to be happy.” No real apology, no acknowledgment of how badly they betrayed me.

Then they officially started dating after everything came out and stayed together for about a year, which made every family gathering awkward as hell. Some relatives thought what they did was unforgivable, while others kept telling me to move on because “they fell in love.”

The issue happened recently at a family dinner. Someone brought up how Jake and I “used to be so close,” and I said honestly that I don’t think I’ll ever look at him the same way after what happened. My brother got angry and said I was acting immature and trying to punish him forever over “one mistake.”

I ended up saying that cheating with your younger brother’s girlfriend while he’s overseas isn’t a mistake, it’s a choice, and that I didn’t owe him forgiveness just because time passed.

Now some family members think I made the dinner uncomfortable and should’ve kept my feelings to myself instead of calling him out publicly.

AITA?