I hang out with 2 of my college collegues once and started detaching myself from them i distance a little bit bcuz i have sensed they are toxic

So Why did they started to tease me when im around in a jokey manner, well i mean they can still talk to me properly but sometimes they tease not only me but also their other friend.

One day at the uni I sit down with my friend and they (those 2 toxic guys) sit down just 1 seat apart from my friend they asked my friend what I was talking about and they started laughing.

But......... Lesson learned for me