Thanks Paul for replying, I lived there previously for 8 years & I've been in the UK for almost 2 years now, I did seek some professional advice around the 'usual resident' requirement as this concerned me before we applied, I actually wanted to wait and apply onshore but she assured me it would be fine to apply offshore as I was intending to return soon and build a life, we just needed to make this clear in our relationship statements. Im reading our statements back now and we empathised the point we were returning in April 2020, which now isn't the case so i can see how this can get me into trouble.
Thanks again for your advice, I may well be in touch with you this weekend! Though Im thinking I just need to bite the bullet & return to sort this out.