Salaam Seraphina,
You stated in your last comment the following:
"I've been told by other 'muslims' that a couple without nikaah contract is not permitted to be in each other's company, be it public or in private, they're not allowed to speak to each other at all, let alone have a coffee or a walk together so to speak."
Me, personally, I find the above claim (made by some) to be ridicules, and find those who circulate such statements to be guilty of seeing grown men and women, who fear God, as little childern who can't control themselves (or rather their sexual urges), in the presence of one another. That said, I would like to share with a good site which refutes such mentality:
http://www.quranicpath.com/misconceptions/lowering_gaze.htmlIn short, here is what the author of the above link says:
"You {believing men} do nothing wrong when you announce your engagement to women, or when you keep it between yourselves. Allah knows that you will think of them. But do not make secret appointments to see them, UNLESS YOU WILL ENGAGE IN GOOD/CONSCIENTIOUS CONVERSATION. And do not confirm the marital tie until the prescribed (waiting) period (from a previous divorce) is over. Know that Allah knows what is in your minds, so beware of Him, and know that Allah is All-Forgiving, Forbearing." (Qur'an 2:235)
In this verse, Allah shows us that it is permissible for a believing man and a woman to be alone (سراً / secretly) together provided their intentions are correct i.e. قَوْلا مَعْرُوفا (good / conscientious conversations) take place. The verse is in reference to private meetings, therefore, there is no restriction with regards to meetings in public either.
Furthermore, "Allah knows that you will think of them", is an additional indication. This verse is in reference to believing women who have been widowed recently (context from the previous verse) - and believing men who are interested to propose to them for marriage. Since Allah says, "Allah knows that you will think of them", it shows that these arbitrary individuals may have already met, and know each other from the past at a personal level - otherwise, a believing man would not think of her for marriage.
Lastly, the verse, "There is no secret meeting of three, without Him being the fourth, nor of five but He is their sixth - nor of less than that or more, but He is with them, wherever they may be..." (Qur'an 58:7), is the basis of the true believer's faith that Allah's presence encompasses them, and is more worthy of reliance than on any Satanic influence. In the Qur'an, it is stated the Satan has no power over the believers:
"He, [Satan], has no authority over those who believe and put their trust in their Lord. He only has authority over those who take him as a friend and associate others with Allah." (Qur'an 16:99-100).
Therefore, the Satan is not "the third" when a true believer is alone with a member of the opposite gender, and verse 2:235 shows that there is no blame in being alone with an opposite gender member provided the conversations are grounded on goodness.