I think you should get legal advice, you could probably get a free walk-in initial consultation with a solicitor straight away, to know where you stand and to give you peace of mind.
LBH 47 WW 47, M 15 T 18 D 11 S 14 BD, I moved out (duped) Jan 18 3 yr EA with ex-H discovered: Feb 18 I moved back in: Aug 18 (against her wishes) ...No R No M/C, continued limbo, dropping the rope!