Ml found out he slept with an omega during his rut and he swore to never like omegas. He doesn’t know ml is one and actually slept with him and not a random person. Ml decided to break up thinking it was the best course of action because he believes mc is a beta. Mc is now pregnant with ml’s child and ml’s family will do anything to make sure that their business and family will keep running so mc is now hiding the fact that he is pregnant to avoid getting his baby taken away
Alpha has major childhood trauma. A large part of it involves betas and when his childhood friend (who is a beta) confesses to him he accepts partially because he knew that if he didn't that would probably be the end of their friendship and he still wanted to stay with his friend. Almost a decade later they are going through the motions of a relationship and a series of events happen and they end up sleeping together. But the alpha doesn't realise the person he slept with is his friend. His friend in the meantime, without either of their knowledge has been slowly transforming into an omega. Them sleeping together coincides with the maturation of his new reproductive organs and he ends up getting pregnant. Before either of them know this, they end up breaking up and are now in a chasing arc. Since the omega is trying to get away from both the pain of the relationship as well as hide the fact that he's now an omega and pregnant, and the alpha is trying to get him back because he still wants him in his life.

Can someone remind me again what made MC avoid ML this far? I'm back after reading long novels so I totally forgot