I'm not sure, but for me it seems like some kind of bride that is starting to second-guess her wedding in benefit of some forbidden paramour. Or perhaps a paramour herself in the wedding of his lover, speaking to him (or her, it'd also make a lot of sense), demanding that the marriage is called off. I'm based on the lines "At the altar, would you pay the price?" and "holy father". Also, Electra is widely known as a woman who had a forbidden love affair, "Electra Heart" may be understood as "Heart like Electra's"
I'm not sure, but for me it seems like some kind of bride that is starting to second-guess her wedding in benefit of some forbidden paramour. Or perhaps a paramour herself in the wedding of his lover, speaking to him (or her, it'd also make a lot of sense), demanding that the marriage is called off. I'm based on the lines "At the altar, would you pay the price?" and "holy father". Also, Electra is widely known as a woman who had a forbidden love affair, "Electra Heart" may be understood as "Heart like Electra's"