Amina Inloes, Amina Inloes is originally from the US and has a PhD in Islamic Studies from the University of Exeter on Shi'a hadith. She is the program leader for the MA Islamic Studies program at the... Answered 1 year ago

It is not allowed and could be considered a metaphorical sort of zina or a pathway to zina; for instance, a hadith says that unlawfully gazing at a non-mahram is a sort of zina of the eye.

However the actual law of zina which involves legal consequences refers to the conventional act of coupling through which procreation occurs. 

Anyway, if you are are still in contact with this person and you aren't married to other people, it is good to sort your situation in one way or another to avoid a possibilitly of the formal type of zina.