I'm just glad they're not putting Rollins and Carisi together....at least not yet. I can see some inter-department "romance" type of "relationship" deal or feelings, I mean, after all, the squad spends many, many hours together, so I think that it can be easy to at least think you're developing feelings for a coworker, but, it is overplayed in this series, and, to me, that brings up ethical issues, such as trying to "save" a love interest over someone else in a dangerous situation, or covering up for them, etc.
Also, like I said, it is just played out. Olivia seems to have had some sort of relationship/feelings/whatever for half the squad, IAB, Bayard Ellis, a DA, so on and so forth, and, besides being professionally inappropriate (at least to me), it's distracting and not really needed. I think it's kinda refreshing to have a budding romance for squad member that: A) isn't within the squad 2) doesn't eat up screen time C) doesn't take away from the squad member from doing their job, and 4) they don't have to sneak around because it's "against the rules."
I may have to eat my words (I hope not) when and if the new relationship Carisi is in happens to be another SVU squad member/a DA/whomever is inappropriate. If he is in a relationship with Olivia, that will be it for me.....but it wouldn't surprise me, especially with these writers.
As a related afterthought, (sorry about the rambling), what if Carisi is in a relationship with Rollins' sister????? Maybe that's why he's being quiet about it, and how the ad for the bra came up on his work computer.....she may have access to it via visiting Amanda at work, or him taking it home....just a thought.