I liked the "just collaboration" between Tookie and Bobby. Two characters who needed a bit more development, and they did it together and I thought it was well done.
Fiona was a mess. Dex said that it wouldn't work because she (Dex) isn't the same person she was 10 years ago, but Fiona is. And if she's basically the same as she was 10 years ago, that helps explain why Dex was so off-balance around her. Whatever she felt 10 years ago, at least part of that came back and hit her, hard. I felt the chemistry from Dex, but the actress playing Fiona just wasn't good enough to really convey much more than ditz and confusion, so it was one-sided. But whatever; Fiona was really just there as a plot device and to help with Dex's character background.
Dex was awesome taking out Clint, the stalker/non-stalker. I didn't care for the slo-mo as she disarmed him and the knife dropped, but it was very short and the move itself was expertly done, so I guess it was okay. I figured the manager Nick had something to do with it, but using a guy who clearly has some kind of issues was a twist I didn't expect. At least Clint wasn't actually evil and Fiona wasn't actually in any danger. Clint really did think he was supposed to be protecting her, which is what the creepy photo was all about. He was showing Fiona how he was keeping an eye on her and she was safe. Ewww.
Lots of pairing up this episode, in various ways. Tookie and Bobby, Dex and Hoffman, Dex and Fiona, Grey and Liz, even Hoffman's brief interaction with Kara (Detective Lee) seemed to point at something, maybe. Just an observation.
I'm still not sure what Ansel's deal was with dropping things. Obviously it was on purpose, but at first I thought maybe Grey had told him to do it, for some reason. When Grey told Ansel later that the cutlery might have been going too far, and they laughed about it, I took that as confirmation of some kind of pre-arrangement that Ansel took too far, just because he's Ansel. But it makes much more sense that Ansel was acting out, and the laugh was to let Ansel know that there's no hard feelings. But wouldn't the dozens of shattered glasses be a bigger deal than the cutlery? You can just wash the cutlery; those glasses are casualties.
Edit: Oh yeah, the mix tape. Until music started playing during one of the scenes, I didn't even think about it. I did kind of like it, even though it was kinda dumb. So... both. I mean, that was the whole point, right? Sentient mix tape providing the appropriate soundtrack for whatever's happening in the car. Good for a laugh, though I can see why it would take some people out of the moment. But we haven't had scenes with Dex in the car recently, so no mix tape.