I was thinking they even might've worked together before joining the caravan.  The bond system does imply that this isn't the first time everyone in the party has adventured together.  Anyway, it probably doesn't really matter.<br/><br/>As for Seras' reluctance, Yulia wouldn't force it, but she probably wouldn't give up after one refusal either.  So I think it's most likely she backed off the first time, but kept trying over the course of the trip, well before they reached the inn; if you think Seras would've caved under further pressure, it probably happened during that time.  I do like the idea of a rendezvous last night,<em>invisibility</em>or no (and I'll suggest yes, just for the fun of the image).<br/><br/>Anyway, the thought that brought all this on was wondering whether Seras might be up for helping Yulia relax a little while she works on her spells, if asked.