My GF got upset over me not "supporting" her while she was having a miserable day and was actually making fun of someone she had to be on the phone with about the way they were talking.

We were talking on the phone...

Me "U do that sometimes too, though".

Her: "You don't support me!... I'm having a shitty day...blah blah".

Me: Laugh it off thinking this is silly

Her: "I don't need this!" Hangs Up!

Me (text): "Hanging up on me is utterly disrespectful. Don't bother calling back." (No exclaims of anger, no questions, no sorry's)

Next thing you know...she wants the D!

In a previous life, I would have taken a completely Beta approach to this and made a complete fool of myself. Don't be that guy. You don't need to take shit form nobody.