(We've looked at both holiday lets and houseshares, and I keep going "£400 a WEEK? We could rent a HOUSE for a MONTH with that money!" and he has escaped the world of houseshares and never wants to go back. This is part of why we're having trouble.)
Does anyone have any ideas on where to look? Or at least which estate agents don't start shaking their heads as soon as you say "really short term lets"?