Help with my plot please?

An innocent quiet girl named Eve (17/18) and is content with her boyfriend who she has known since they’ve been in nappies, studies and family life. Her mum is a famous writer and an alcoholic (which can turn Eve’s personality and results to her spending time elsewhere) Her boyfriend Michael is very sweet towards Eve but at a party when Michael spots Eve admiring an old but beautiful motorbike, the next minute she sees him and his friend beating up an innocent boy. Blah Blah Blah, this boy is the complete opposite to Michael, dark skin, soft looking but is always very wary around Eve but this just keeps her hanging on for more, he tries avoiding her etc etc, but Eve dosen’t give up and they become best friends. This guy is called William (Will) and he’s married but his wife is never seen. Michael wants her to stay away from him but won’t say why. William tells Eve that he’s a shapeshifter, a wolf and convinces her that there are others who aren’t from a good tribe like his (he dosen’t tell her that Michael is one of them) although Eve clicks on from what she’s seen of Williams shapeshifter actions. Eve accepts Michaels proposal although she’s in love with William, then she finds out she IS Williams wife and is a shapeshifter too from marrige from a past life of being married to William. (I am changing the shapeshifting rules and it has to be activiated after such a long time to enhance the changes) Everything becomes very awkward as being married to two different tribes is not allowed, bla ba bla something along those lines but put more clearer,

I have started my story with a quote which becomes relevant later in the book which seems quite clever and is quite an important part of the story.

Ideas would help! Thank you, and I know you might all think it’s a bit of a Twilight Saga rip off but it’s not I just like the genre
oh and by the way it is a quote because someone says it later on in the story.

to start with-its not a quote unless you are quoting from another source. in your case you do not show the other source, there is no evidence whatsoever. otherwise for a draft you are rolling on the right direction

Reliant Robin insures as bike?