Kind of confused and need a little help

So, I’m kinda confused and need a little help.

I am around a lot of younger people lately. And when they talk, I know that they are talking some semblance of English but there are times I really don’t know what they are saying. I just kinda nod my head and smile and such but maybe someone can help me.

So one of these young people will say something like, “Yeah, that dude is my friend, like fer realz.” In text, they just abbreviate it “FR” which I just recently learned! So this young person will continue saying like, “yeah man, back in the day we hung out all the time, like fer real fer real.” At this point, I say, “OK, so you aren’t as close as you once were?” They say “nah man, we still tight, like fer real 100%” So now I’m confused. Before, they were fer real fer real, but now they are fer real. That seems like it has degraded somewhat. Wouldn’t fer real fer real, be like twice as fer real as just fer real? Does that mean that sometime in the future, he won’t be fer real at all? Would that make him an imaginary friend??? Can you have 3 times the fer real? Like fer real fer real fer real?? Is that too much fer real? If you have too much fer real, does it become not fer real? Again, does it become imaginary?