Can I just say, and I mean this in a friendly way, you sound adorable when you're flustered? At least, you come across as flustered, so correct me if I'm wrong, but it just really comes across as cute *Grin*
Anyways, I am enjoying RPing too, I too like moving things along sometimes(Just did a 5 day time skip in one of my RPs) but only after talking to my partner about it. I also don't mine events being inserted between events in my partner's posts, in fact I do it too, however I try to leave it so they can actually respond to it. In this case you could have had Xeph respond to what my guy was saying with his evil plans in mind, but stop the actual post with him rounding up the kids so I could have added my own little hunting scene or at least interactions with the kids and/or teacher. Then in your next post had Xeph bring Lai down and dump all that work off on him.
Also, just a note, and this is not a criticism, but you do realize you have far more paragraphs in your post than you put? Some of your para can be broken into two or even three, so if you're worrying about paragraph count, you're doing fine :P
So, by all means, insert all you want, just keep an eye out for things a nosy little angel may want to put forth his two cents on and keep the questions coming. I will do my best to answer them in a timely manner :P