To continue speculation from this post regarding episode eight of season two, Damian tweeted with this:

Saw the pool at Vancouver Film Studio where we will hang the chopper. It will be amazing! FYI: Robin Dunne LOVES working in the water.

So. I'm going to assume that the "sexual frustration" takes place between Will and someone else.

Also:

Deep pool at VFS for ep 208. Now imagine a helicopter hanging over the water. http://yfrog.com/0tdikj

This episode is going to be kickass!