I have an issue with my 3 year LTR.

On Instagram you can see what reels/videos friends have liked. I saw my GF liked a reel of some guy working out and training. Red flag for me and I'm considering leaving or emotionally disconnecting and looking for a new LTR.

Am I overreacting here or is this signal sign of things to come/red flag?

I've been in the RP space for about 10 years and I've studied the sidebar, worked with coaches and helped others too.

This seems like a small issue however if I bring it up I think it will just lead to this behavior being hidden.

I want to go away for a few days or a week or so on my own because I live with my GF, this was a mistake but it makes it easy as she’s always cooking and cleaning, generally helping me with admin/small things etc which is more convenient with her living here.

Maybe me going away solo is me trying to punish her for her behavior and some weird covert contract or issue I have.

Also funny side situation, my GF has probably fucked a lot of guys before me but her younger sister is a virgin. I'm 32 and my gf is 32 and her sister is 24. I'm way more attracted to her sister and her sister gives me a lot of IOIs too. I would happily dump my gf for her sister but I'm not sure how that would work in reality haha.

Does anyone see a pattern here than I can improve on/fix? I can give more info if it helps but I tried to keep the info short and to the point

Thanks