Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh

 

You have to be careful. Good intentions do not allow wrong acts. Islam allowed people who are interested in each other to communicate based on a real move of responsibility. So if he is serious about you, ready to start a family, he should ask for your hand and during engagement you can talk freely as much as you want.

 

If it was just having good fun time it will be very soon going into flirting then you get more attached to him then he will demand favors intimate ones for sure than haram is growing bigger and bigger.

 

I suggest you take one hard step and quit and leave him with a choice of either come serious and knock our door or goodbye.

 

Almighty Allah knows best.