Alpha's Ares Girlfriend

Delia, as the only female Alpha, always suffered from people questioning her, she was used to it, she didn't care, she would use her strength to silence those people.
One day, she met the strongest Alpha Allen, they found that they're mate, but they were disgusted with each other, but because of their own purpose and maintain the mateship, but she was also attracted to her Beta Colin who has a mysterious past.
Colin was rescued by Delia after serious injuries and became her beta, he fell in love with Delia hopelessly, he was unable to say his love because of low self-esteem, he just silently guarded Delia, until his love could no longer be restrained, he confessed his feelings to Delia.
The strongest Alpha Allen who had a beloved one, he loathed Delia who challenged his bottom line, but he would always pay attention to Delia's every move. And the Beta beside her always let him feel the danger.
What will be the final outcome of the confusing relationship between the three? What is the true identity of Colin? Will Delia finally find true love?