This is Erin, and chances are, she already hates you. Don't take it personally, Erin hates everyone.

Erin's life was pretty good until a certain day. She was raised by a wealthy family, and was pretty much, by all accounts, a formal lady. She kept high spirits, and was very friendly. She met and married a young man whom she loved.

As it turns out, however, the man she married loved her fortune, not Erin. Soon after they wed, the man Murdered her and her parents, making him the benefactor of their fortune. However, the Gods had plans for Erin, and she was not supposed to die. Violating one of the most fundamental laws, the gods returned her to life. The trauma of being murdered, sealed her heart, and Erin's personality changed. She immediately sought her revenge against her former husband.

Her revenge complete, the Gods summoned Erin to Olympus and revealed why they brought her back. As gods die, a mortal vessel must be chosen to replace them. Erin had been preordained as the successor to Eris, goddess of chaos and discord. Naturally, Erin rebelled against this forced life, however she was given no other option. Begrudgingly, she waited until the day Eris died, being used among the gods as a servant and errand bitch. With the passing days, she despised the gods more and more. Finally, the day arrived, and she ascended to goddess-hood.

She still despises the Gods, but there's little she can do, but take it out on everyone else. So yeah, chances are, she hates you for no reason, other than an outlet for her hatred for the gods.