Faith knew they were now all really fucked.
After B tossed that piece of glass to slice off English-bitch's arm, the Glove of Myneghon fell to the floor, and then this metal gauntlet promptly sent out a blast of lightning which finished off the job by reducing the rest of a screaming Gwendolyn Post into ashes. During all this, Faith allowed herself a spiteful moment to hope that the death of the woman who'd falsely claimed to be her Watcher and manipulated the Slayer in her charge had lasted long enough for it to hurt as much as possible.
The savage satisfaction Faith had taken from her betrayer's demise didn't last very long, though. Not when that magical artifact then started shooting out even more lightning, as if it was now completely out of control. Aside from the numerous streams of electrical bolts that grounded themselves throughout the mansion's room, gouging out small craters in the stone floors, walls, and ceiling wherever they struck, the glove also spewed out a couple of webs of crackling electrical energy that stuck to various parts of the room. Unfortunately, two of these hazardous tangles now entirely covered the only exits out of here, which were the door and the skylight.
Desperately looking over some kind of stone altar where she was taking shelter, Faith saw that everyone else there - B, Red, Boytoy, and Fang - were also trapped and unable to move around through the intense lightning. To make matters even worse those deadly lances of electricity were beginning to increase in both their numbers and their force. Glancing around in a futile search for some way to escape which she hadn't already found two minutes ago, a flicker of motion caught Faith's eye. Turning her head, the Boston-born Slayer stared in horror at Xander Harris rising to his feet, and then advancing towards the center of the room where the Glove of Myneghon continued to produce its blasts of lightning.
In his first couple of steps, Xander was directly hit by at least a dozen lightning bolts, any one of them having the same power of the initial strike that had killed Gwendolyn Post.
As if nothing at all had happened, Xander kept on walking.
Ignoring everyone else, Faith watched this in her utter shock, particularly when Xander reached the glove on the floor, stopped before this, and then bent down to grab the weapon. In a stupendous detonation of white light that left Faith blinking away glowing afterimages, she peered past these to see Xander now standing in the middle of the room. Cradling the Glove of Myneghon in his arms, the young man's entire body was presently covered with jagged coils and lines of sizzling energy. Lifting the supernatural gauntlet over his head, Xander held it there for a moment…and in another huge thunderclap, every bit of lightning shot upwards through the skylight to disappear into the heavens.
Her mouth wide open in wonder, Faith brought her head down from gaping at the smoking hole in the ceiling, to see where Xander was also gently smoldering while swaying on his feet in the room's center. He appeared to be exactly like a classic Warner Brothers cartoon character who'd somehow survived an absolutely preposterous explosion, with scorched and tattered clothes, a burned-black face, and spiky hair. Gazing blankly ahead, Xander opened his mouth, and he coughed out a perfect smoke ring, following this with a disbelieving, "Whooooaaaahhhh…"
Right after that, the teenage boy glanced down at what he continued to clutch in his arms, the Glove of Myneghon that still had inside itself the severed hand and forearm of Ms. Post. The instant he remembered this little bit of information, a very grossed-out Xander promptly dumped his burden onto the floor and he started frantically wiping the palms of his hands upon the front of his shirt, sending bits of charred cloth flying, all to the sounds of this young man's disgusted, "Yuck! Yuck! Yuck!"
Coming out from the back of the stone whatever she'd been hiding behind, Faith was about to get right over there and demand from Boytoy what the hell all that had been about. However, the brunette girl was beaten in this by B and Red, who'd scrambled over to cluster around their friend. Even Fang had warily approached while starting to incredulously regard somebody he seriously disliked, just as if Xander had suddenly grown another head. Seeing that she'd have to wait her turn, Faith then felt an utterly unexpected wave of bitterness flood into her mind.
Edging her way past the others, none of whom paid any attention to her while Boytoy was telling them about some guy called Garth Ranzz, Faith left the room to go through the mansion, and she finally made her way outside. Stubbornly refusing to allow the tears appearing at the corners of her eyes to trickle down her cheeks, Faith angrily swiped at her face, and then the Slayer started the long trudge back to her crappy motel room.
This was the last fuckin' straw. What happened back there, at Angel's Crawford Street mansion, had to be just another stupid case of Sunnydale weirdness that nobody bothered telling the new girl about, not a single word. Of course not. After all, it wasn't like the other Scoobies had even bothered earlier to talk to Faith in the first place. About such things, like why she didn't already have a Watcher, so that a goddamn fake could show up and fool everyone. Or why she had to stay on her own in a horrible dive that gave other dives a bad name. Or…somethin', somethin', somethin'.
No more. Nobody cared, nobody better expect Faith to care, and nobody was gonna make her do anythin' she didn't want to. Ever again.
It was at that point where Faith Lehane silently vowed to herself the claim she'd later repeat to Buffy Summers: "I'm on my side. That's enough."