You shouldn't. As has been stated in a previous chapter, he may have been more attracted to Pina, but he still had his free will besides that.Although, I can't help but pity the prince, since he too is a victim of the star maiden...
It's a shame we can't get a maniacal 'Villainess' laugh outta her but I imagine she'd still wanna act as "Emi's ideal Remilia" tho i'm sure angel would accept the sociopathic Remilia too XDRemi didn't say a thing this chapter but in this moment she pretty much let all of them know "I won"