This is more of a question to ask those of you who have been cheated on in hindsight. What was the first explanation, event, reasoning/justification, etc, your partner gave you (over something seemingly innocent) that didn’t sit right with you? Maybe your gut feeling wasn’t even cheating at first- but it got the ball rolling for you to observe their behavior in a more serious manner?

I [23M] have all things considered, a pretty dope girlfriend [22F]. Always down in the bedroom, does laundry and some cooking without me having to ask, has clean social media and doesn’t openly engage/text other dudes, she gives me access to her phone whenever (even though i don’t look at it), etc. All while she is in grad school, and essentially lives with me in my apartment in a big city. I work full-time. We spend alot of time together and vast majority of nights during the week. She’s very responsive when we text and we share eachothers location. She goes out of her way to note if she’s going somewhere or leaving her house, etc.

Things are solid overall, but something has been odd to me. There’s been a random day (Tuesday normally) 2-3 times over last few months that she likes to spend at home. It aligns with her school work, being able to get things done, and come back to me at night. Usually she’ll stay at her house Monday night, then spend all day there Tuesday, come back to me late Tuesday night. No issues with me, ive got my own stuff so idrc.

It’s been the situation, however, that neither of her parents have been home majority of both of these days, and she makes it seem like she chooses to go home at these times because she gets to spend time with fam. But more often than not, they’re not home until mid-late afternoon after work when I ask and prod for substantive answers. So seems like it’s an open crib most of the day and that’s never transparently said until i ask some detailed questions. She is normally very responsive and wanting to talk (after she sleeps until late morning) but i’ve noticed on these days it’s less responsive and almost all initiation in conversation comes from me. She says she’s busy and is having her own priorities to work on things, but i just find the lack of transparency with whose home (parents, older brother, etc) at what time, engaging/initiating convo much less than normal, and choosing to go back in general to spend time with fam (when most actually appear to be gone the entire day in the first place) seems like really bizaree behavior. If she went MIA for hours at a time in middle of day, had discrepancies with her location then obviously something would be a red flag. But it mostly hasn’t been the situation there.

Do you think someone could lie about certain parents, siblings, etc, being home at given times when asked? Obviously i can’t ask questions in inquisitive ways too often because it’ll come off as super insecure, but i hope my detail in how good/transparent she typically is illustrates how odd I could find these days that occur every few weeks to be? Thanks in advance.