infinitive for сочтемся is счесться - here means to pay back (usually money). infinitife for обойдусь - обходиться - to manage without or to do without. So the meaning is something like "I'll pay you back. I'll manage without that! (I don't need this!)" How would you say this in English to sound more natural?

Hm...in English so difficult but as for me it does "we must have very serious conversations.although I don't need it."