Should I break up with my girlfriend?

[Brenda Fleming]

In my perspective, don't get jealous so easily.
If you truly hate when she likes guys' Instagram photos then simply ask her if she can stop.
You should start expressing how you feel toward her because little do you know that can make your relationship 10X better.
If she doesn't want to delete her Instagram then I suggest you just simply ask her to stop like other male guys' pictures.
BUT do you like other females' pictures? If yes, then you shouldn't tell her to stop liking guys' pics when you're doing the exact same thing but you're liking girls' pics.
Don't let some stupid jealous get ahold of your relationship.
Talk to her about your problems rather than keeping it to yourself. You'll feel so much better when you do.
Also, if she says no when you ask her to stop then I suggest you just break it off with her and find a female that's willing to listen to your wills.
Good luck