i came in this country 6 year ago.enterd inlegally via hethrow airport

Now my question is,is that paragraph 320 7b apply on me or not?
in that i read,if i go valuntry and pay my own depature then 1 year ban apply on me.
but i re in another paragraph i read this ban not apply if i apply as a spouse.please expert come forword and please give me right opinion.i consalte with one of then solicitor and he said,he is not sure its depend on immigration officer he wana give u ban or not.