Thunderblast

Thunderblast is a Decepticon fangirl who is obsessed with Darth Megatron. When Darth Megatron professed his love for Starscream, she left him in disgust and moved her affection/obsession to his clone Megatron (G1). She craves power like crazy though, so her obsession was probably a scheme to gain control of the Decepticons which led to a full out obsession with Darth Megatron.