I think it’s about what’s driving that urge. Sometimes it comes from our own longing - feeling lonely or not believing they’ll still want us if we leave them alone. Sometimes, we’re actually feeling the energetic pull from our twin. Sometimes, runners are trying to manifest us back into their 3D life, even if they’re not ready to be involved in ours. They stay quiet in 3D, but they’re not quiet in higher dimensions.
If you get signs they’re thinking about you, that could genuinely be them reaching through the connection. But before you act (whether it’s calling them or whatever else), take a moment to ground yourself first.
Increased communication between twins can be a sign that the separation is ending btw. Text messages, calls, running into each other - all signs that things might be improving. You have to make your own judgment call here, though. If you’re getting an inner nudge that isn’t driven by fear but by love, follow it. Or don’t. Let your intuition answer this for you.