Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 1 year ago

Bismihi ta'ala

Hugging in this kind of scenario would somehow entail emotional attraction, and a person of piety who observes the highest level of devotion to the Almighty does not want to engage in anything that would lead to haram or anything of that sort. 

So, if both have decided they wish to get married, they should not delay the procedures for their Nikah ceremony, and after that they will be mahram to each other.

And Allah knows best.