I drive an 07 ss/sc with LSD tranny

I replaced my clutch about 25k ago with a spec stage 2+ and its been great, until recently
I slipped it at the track bad and I was surprised because its never slipped on me before so I said Ehh what ever.

but recently I was having some very sprited drving with my friends Saab aero
I left from a dig burning out thru 1st gear and slammed 2nd, well I thought I was spinning tire but all I was spinning was clutch,

So I left off and went for 3rd and it didn't wanna come out of gear or back in, I realised when I pressed the clutch in (that still had full pressure in the peddle) my rpms didn't drop and I could still gain speed with the clutch pressed in........

So what's the problem here?
When my tob blew before I lost pressure in my clutch peddle, but this time I have full pressure in the peddle still and it kinda "sqeaks" in the engine comp. When pressed.
A friend said from the clutch spin I could've "friction welded" the clutch to the flywheel?
Any ideas?