The queen's intentions

Act 1.4 lines 209-212
Although the Queen claims that she wants Gaveston back to win back the King's love, perhaps she has other intentions. It seems that the King made a switch from love to hate on Queen Isabella immediately after the arrival of Gaveston (even though we never actually see their interactions and relationship prior to Gaveston). Perhaps, she badly wants the return of Gaveston for her own political reasons. She seems to use her sex appeal to convince Mortimer Jr. into a private intimate conversation to completely change his mind and then further getting him to change the other men's minds who oppose King Edward's relationship with Gaveston. Is she really in love with the King or is she manipulating the men using her female powers? Without Gaveston Mortimer senior and junior, Warwick, Lancaster, Pembroke, etc. will have much less conflict with the King and wouldn't be threatening him. They are the King's enemies when Gaveston is near. However, if Gaveston has left they are no longer the enemies and the entire blame for the King's sorrow falls on Queen Isabella. This leads me to the conclusion that perhaps the Queen's real motives were for political reasons rather than love.