Hi... There are no right and wrong choices in such scenarios. Anything you both choose will have consequences. If you both are sure that you can't take it forward, it is always better to let go a relationship in a decent way, rather than waiting for it to be torn apart. Your friendship may get back after few years into your separate marital lives, if there has been a real friendship between you both.
Next Steps
Consult a Psychologist.
Interpersonal Relationship Counselling is required.
Health Tips
Mr. Gunjan Maithil
Senior Psychologist
Cell: Nine Six Seven One Three Zero Three One Three Four (whatsapp)
Website:https://gunjanmaithil.wixsite.com/therapy
App: http://wix.to/fECHB08?ref=cl