<human>: A week or so ago, I met this girl through a dating app.  She seems really cool and based on her profile was exactly the type of girl I was looking for.  I started chatting with her and it went really well, so I asked if she wanted to get coffee with me sometime this week, and she said yes.

However, after I made the date, I decided to look her up on Facebook, something I usually do before first dates.  When I found her profile, I noticed that she was with a guy in her profile picture.  Not a big red flag, but I clicked on the pic and started going through her other profile pictures.  I noticed that this guy appears in a lot of her photos, and that she refers to him as her "other half" in captions and has comments about hopefully getting engaged to him soon.  On the other hand, her current profile pic with him in it is 2 months old, so it's possible that they are no longer together, but I feel like it's weird to have a photo with an ex as your profile pic on Facebook.

So now I'm trying to figure out what to do.  I dont wanna be the guy who ruins a long relationship.  However, I really do want to get to know her and it could just be me being paranoid.  I want to just ask her but that would be admitting that I looked at her Facebook which is kind of weird before we've even met in person.  Should I just go on the date and see what happens from there, or should I cancel, or what?

Can you condense the text into a few key points?
<bot>: Met a girl online, made a date with her, discovered that she might have a boyfriend, don't wanna be a homewrecker.