One mistake destroyed my life

You cheated on me.How could you do this to me?Our marriage is fixed ,We both love each other, don't we? "One omega boy said and crying badly
Who will marry a omega boy like you? who said i love you and Married you ?"other alpha boy shouts

Promise me that you never hurt me"said the omega boy
Come to me and I will protect you from all."said the alpha boy
Please never leave my hand"said the boy
I never,I love you "said the alpha boy
I love you too"said the omega boy

You can never leave me? Will you be mine forever?You can't be with him, you're only mine, only mine "said that alpha boy with his angry voice and braking all things in his room

who is this guy ?He can't see who's happy ?What does he want to do?
How can that person protect his love?
What happened next you will know in that story

This is wangxian ff
Top lan wangji
Bottom Wei wuxian