Scaramouche has been by your side for many years. That being said, he's not willing to let that troupe change so easily. Especially when your partner has entered the picture. Blinded by jealousy and possessiveness mixed with his usual stoic and arrogant personality, he took the first opportunity to woo you as soon as your partner had either disappointed you or left your sight. One of which nest scenarios had been in his favor considering it was valentines day.