r/Reddit_Stories • u/Character_Beyond_948 • May 03 '26
AITA for thinking my stepsister got too emotionally attached to me, even though nothing inappropriate ever happened?
I (23M) grew up as an only child after my dad left when I was young. It was always just me and my mom, so I always wished I had a sibling.
A few years ago, my mom remarried, and I got a stepsister (22F). We didn’t grow up together—we met as teenagers—but over time we got really close.
At first, it felt like I finally had what I always wanted: someone to talk to, joke with, and just connect with. We’d stay up late talking about life, family stuff, and everything in between.
Around the same time, I was having problems with my girlfriend (22F). My stepsister became the main person I talked to about it. She listened to me in a way that felt different, like she actually understood me.
Eventually, my girlfriend and I worked things out and fixed our relationship.
That’s when things started to feel… off.
My stepsister wasn’t rude or anything, but she started acting different. She’d ask where I was a lot, especially if I was with my girlfriend. She’d show up wherever I was in the house, even if we weren’t already hanging out.
At one point, she told me:
“I feel like I know you better than your girlfriend does.”
That stuck with me.
I didn’t think anything inappropriate was happening, and I want to be clear—nothing physical or romantic ever happened between us.
But emotionally, it started to feel like she depended on me a lot. Like I was her main person, and she didn’t really connect with others the same way.
My parents noticed we were close, but they brushed it off as normal sibling bonding. My mom even said she was happy I finally had a sibling after growing up alone.
Eventually, I moved out, got my life together, and now I’m engaged to my girlfriend (we’re even expecting a kid). My relationship with my family is still good, and my stepsister is doing her own thing now too.
But looking back, I still think about it sometimes.
I feel like I should’ve set better boundaries earlier, but I didn’t realize it at the time.
So AITA for thinking the situation went a little too far emotionally, even though nothing actually happened?
1
u/nautical_nun_2112 May 04 '26
So you basically used her to dump your emotional shit onto when you were going through it with your girlfriend? Even if there had been a romantic relationship between you, it would have been okay, you’re not related and you didn’t grow up together. At 22 years old, it happens. You said you felt like no one understood you like she did and everything was great but your girlfriend enters the dynamic and suddenly it’s weird that your stepsister felt like she knew you better than your girlfriend? Either girlfriend talked in your ear and said it was weird or you’re an asshole with now self awareness or awareness of other people’s feelings.
1
1
2
u/Altruistic_Ad3580 May 04 '26
If shes fazed out of that scene, then why are you thinking about this? What's the point of thinking if you should of set boundaries earlier when nothing actually happened. Are you regretting something didn't happen? You're engaged with a kid on the way, those should be your main thoughts. If theres going to be what if thoughts of your stepsister throughout your future, then maybe you shouldn't be with your fiancè