Separation happens because neither of you was ready for a union. It sucks, but that’s the reality. For the most part, if you’re still separated, then it’s probably not the time yet, but maybe there are situations where the two of you have done the work, and you are just waiting for someone to pull the trigger.
I would read this thread, there was some good advice and experiences
My general assumption would be that if you have to ask, it probably isn’t time yet. Your twin feels you energetically anyway, text or no text. Reaching out physically is a fine line. It can help the runner drop their ego, or trigger them short-term. No one-size-fits-all. If you do it, don’t force an outcome and be brutally honest with yourself about why you’re doing it. If you’re just reaching out in the hopes that things are ready now, maybe try to be honest with yourself about how much work you’ve really done to this point.