May was born to a wealthy family in Perth. Unfortunately for her, her Dhampir ancestors weren't ones trying to rise above the hatred and discrimination her kind was often subjected to; rather, they often took advantage of it and the family was firmly rooted in the seedy underbelly of the city, managing questionable businesses and evading the Ministry's pursuit. However, given that they were undergoing particularly violent confrontations with their rivals in the underworld, May's relatives ultimately opted not to have her grow up in this environment. She never got much of a chance to get too close to any of them as she was often sent to schools far away from their HQ as means of protecting the young child of that kind of life, as well as would-be pursuers that would want to exploit her status for their gain.
Eventually, as she finally reached the appropriate age to enroll in a proper full magical education, the Bowen family ultimately decided on sending the girl to Tallygarunga given their history of diversity and acceptance towards several species. She experienced the strange dichotomy between her past and the amicable environment of that school, and chose to remain evasive regarding where she came from. To combat the feeling of homesickness that she constantly felt despite not being particularly close to her relatives, she became more social and invested in people's lives rather than her own. This led her to create a bit of a network while still in school despite being very reserved, taking a liking to giving people advice and help them out with their troubles instead.
She ultimately decided to become a Hit Wizard upon graduation, enrolling in VMU to attain the required Auror training prior to taking on that chapter of her life on. It came to an abrupt close shortly after graduation, however, as she heard through the grapevine that her family's business was folding left and right as the confrontations never ended over the years, and had gotten particularly bloody. Honor bound, the girl uprooted her entire life overnight to take matters into her own hands, upset that her family kept her out of it for so long - even if she never wanted to be a criminal herself.
As she returned to Perth, her family was barely left standing. She did what little she could to hold up a resistance, but her efforts ended up gaining the attention of the Ministry of Magic. She was offered a choice: either they would crack down on what was left of the Bowens, or she could lend her services as a Bounty Hunter for them in exchange to them turning a blind eye, tipping the family off, and keeping her well fed. Willing to do whatever it took to keep them alive, May agreed to this offer, immediately starting the grueling training directly under the Ministry. It all took a few years, but slowly and surely her family got back on her feet and she became a full fledged Bounty Hunter. Eventually wanting to salvage whatever was left of her life back home, she requested transfer to Melbourne, which was granted. But did anything survive her leaving without warning and being completely out of reach for four years?
It wasn't easy, but May managed to rekindle most friendships over the months that followed, some more easily than others. A few remained more than a bit apprehensive over her potentially disappearing again at some point down the line but gave her a chance nonetheless and she's taken it and ran with it, gradually proving herself worthy of a minimal sense of trust despite the betrayal years before.
Her utmost priority became to take care of Ian, her brother. She worked out a deal with the Ministry to provide enough nourishment in her payments to cover for the boy as well and started to personally train him in self defense; fortunately he did seem to already have a clue of how to fight and so the transition wasn't as painful as it could have been. The more time that passes between the two the more she realizes how ignorant she is of his youth, personality and what drives him, which gave rise to the idea she's wholly incapable to protect him to begin with - at least, in certain ways. As such she's grown to rely on very few people of her network whom are aware they're siblings to watch over the boy and keep her posted if anything odd happens.
She's also inadvertently grown closer to her ex, or at least more than she ever intended, through sheer necessity - as a particular murder shook the Halfbreed community, she came to learn Olivia Teagarden was somewhat in the murderer's sights due to association. Breaking protocol, May decided to cooperate with her and the son of the victim, Travis Franklin, to catch the perpetrator before the Ministry takes the matter into their own hands and send her to kill it. The whole matter is starting to make her think that Olivia is better off with May around while facing additional danger when having her protection than having May be away, which is a blow to the ego of the woman whom once left just so to keep everyone safe.