In my case, I am just sad that Suiren disappear after I battle her, at least Lilie left for a reason
We really must thank you! Let's meet again somewhere! What...? You're leaving? Boss... Oh dear... Eeh!? Aah! The UBs we struggled so hard to protect are escaping...! How is this MY fault!? Waaah! I just wanted to see some lesyay! no no no NO! First I can't keep Lillie and then just as I thought I found someone that could help put these sad feelings behind me YOU TELL ME YOU ARE LEAVING!? DON'T SCREW WITH ME! DAMN IT ALL! If this is how it's going to be, I won't let you finish your work! trembletremble