Chris to mother: "you'll never let him go till i do". What does Chris intend to do so that Kate will let go of him?

Chris is going to cut down the tree.

no, in Act Three

chris is going to marry ann and by that he think he could make mother to let go her outher son -larry .mother doesnt want at all that chris will marry kate because she didn't let go larry from her head she still belive that ann is larry's girl and if chris will marry her she will loose her hope of larry's comeback at home to his girl-to his family.