First off, big hugs!!!
Next, what's the fabric composition of the jeans? Check that.
I got ink on some sheets once (well, more than once, actually...insert blushing fact here). But this time it was a new duvet cover or something and a real mess. It wasn't white so bleach was not an option. So I went online.
I tried a variety of things and each helped to a degree. First, nail polish remover. Then hairspray. Then soaking in regular stain remover stuff, followed by washing. I think I did another round of this.
Eventually, the stain came out!!
So I think it is possible to succeed, depending on the type of ink used and the fabric of the jeans.