Girlfriend cheating redflag?

[Anonymous]

so my girlfriend is acting very strange and is really cold with me after meeting a dude in our class (he smokes weed, and she is also a smoker, pretty sure they smoke together). She always greets him with a hug but never does that with other guys and now she is acting stupid and she is always chatting with him while ignoring me.
So I already am 99.9% sure she is cheating but I would like some input from u guys.

thanks

[AngelMegumin]

Did she consider u his boyfriend? From what u say, looks like she didn't.

[Asker]

Yeah she "is"

[IncognitoBandito]

She might just really enjoy the weed

[Asker]

Well they hug way too much and spends lots of time with him, i am sure its not just weed that she is enjoying

[IncognitoBandito]

Well when she's feeling high giving the guy next to her a loving bj might just come naturally

[Asker]

Yeah u are right, I am gonna dump her
thanks man