It's not hard to imagine that telling Remus about the romance that will be in store for him in their world might be more stress than it's worth. Hermione isn't sure whether or not she'd want to know any details about her own future back home, in spite of coming from a time far less volatile and uncertain than things were during her third year. The complication comes from the juxtaposition of their times. Being from a later year means potentially slipping, and it makes it hard for Remus to predict how Hermione may act, based on the long, blank period between the two of them.

Beyond that, there's the worry of missed potential. Can people be compelled to do more if they know that they're capable of it?

Harry saw himself performing a Patronus Charm, and it gave him the courage he needed to protect himself and Sirius from harm.

"I'm starting to think of this place as another path for all of us, separate from the one we were on in our home world. There's no other way to react for the time being, is there? We can't assume we'll make it back, and we can't keep ourselves from enjoying the present because of it. It's unfortunate that Ron will miss his family while he's here, but he is here, so we may as well make the best of it, as you've said." Hermione tilts her head, resting her cheek against her palm. "Do you mind if I ask, who would you selfishly bring here if you could? Is it Harry?"