An argument to me is nasty, an angry challenging of views, no manners, blunt, rude, that is taken personally.
A friendly conversation is me expressing my opinion, you expressing yours, any disagreement kept in a civil manner, bounce the idea back and forth, see if goes anywhere, see if I learn anything, which doesn't happen if I am arguing with someone.
I don't want someone stuffing their views down my throat in a brutal, I am so much more superior than you manner, I'd rather they pointed out politely where my views are wrong. To me that's arguing.
I don't like arguing.