Bad luck at work.

Dear Masters
Last August I had a big argument with my Manager, She's 29(rooster year) and expecting a baby in December. I am a 51 yr old rat, and my boss is a 43 yr old Monkey.
The problem did not blown out of proportion between Manager and me, until the Boss brought us in to his office to slove the problem. He told the Manager that I had complained about her(which I didn't) and vice versa.
The whole mediation did not go well and there were still issues that needhis attention, but he is sweeping this under the carpet.
Till today my relationship with mymanager has gone beyond repair and that myboss had instigated and used this to his advantage.
He will gainboth ways asthe manager resigns, he dont have to pay her maternity leaveand bonus, whereas for me, he don't have to paysalary and bonus.
How do we deal with this cunning, without compassion boss.
Please help.