Charmaine belittled and tore down Artie any chance she got as he was a worker ass nikka....there was a reason Artie was chasing these hoes and trying to hang around tone and the guys...he felt that what she wanted of him as he felt she loved Tony ...Charmaine was a real one, easily the best wife in the show. You want someone like that in your corner.
She didn't resent Carmella either (if anything, she pitied her), she was just a little pissed that Carm treated her like a servant at that party.
Charmaine wouldn't tell carm that shyt if she wasn't trying to make her jealous