Okay, buckle up because I (28F) may have triggered a full-blown identity crisis over a Hydro Flask.

My boyfriend (29M) has this water bottle. It's scratched, dented, has a peeling sticker that says “Stay Moist,” and he treats it like it’s a beloved pet. He brings it everywhere. To the store. On walks. Once to a funeral (he left it in the car, but still). He talks about it like it has feelings. He’s said, “She never lets me down.” He has named it Brenda.

So naturally, I wanted to test something. For science. I bought an exact replica. Same size. Same color. Even added the same dumb sticker. I just wanted to see if he’d notice.

I swapped them while he was asleep.

Next morning, he picked it up like normal and took a sip… and then just froze. He stared at it like it had just called him by the wrong name. Then he whispered, “Brenda… what happened to you?”

I kept it cool. Said nothing.

But over the next few days, he got weird. He started saying things like, “She feels… off.” He tried to “fix” the dent that was no longer there. At one point, he held it up and said, “You’re not her.”

Eventually he interrogated the dog, asking if I had “seen anything suspicious.”

Finally, he looked me dead in the eye and said, “If you did something to Brenda, just tell me. I need closure.”

So I came clean. Told him I swapped it. He looked genuinely hurt. Like, betrayed-by-my-own-family hurt. He said I "violated Brenda's trust" and "interfered in a sacred bond."

Now he’s keeping both bottles and “raising them as sisters” because “Brenda deserves a chance to forgive.”

So… AITA for replacing his emotional support bottle with a decoy?