Well, I'm not quite ready to give up yet. Although the plot went almost exactly where I predicted it would, I do like that the new addition is a sympathetic fat character.
The ending of this last episode was a half-step in the right direction. I need Phil to be less of an asshole, or the show to quit centering on him. You could compare it to "The Office". Michael Scott is uncomfortable to watch because he does horrible things and has an off-putting personality. There are two key differences. One, Michael Scott is not the center of the show. Jim and Pam are. "The Office" would be pretty unbearable if it was constantly from Michael's POV. And two, Michael has redeeming qualities. He may do awful things, but the motivation is that he wants to be liked and admired. Phil's only motivation for the past three episodes has been to put his penis inside Melissa.
The speech at the end was, as I said, a half-step. I don't buy for a second that he's actually falling in love with Melissa. It could be another ploy to get in her pants, but the show clearly doesn't want us to think that. But he hasn't spent enough time with her, actually connecting with her and listening to her as opposed to figuring out an angle to getting her in bed. I'd buy that he's confused lust with love, but not that he's actually in love with her. The show just hasn't done the job of laying the groundwork for that. Still, if it means we're moving away from Phil constantly being a detestable scumbag, I'll go along with it for a while.