Affiliate Marketing Secrets

Me (26) posted in a upcountry small town where bachelor’s accomodation being scarce I had to manage a single room staying in the residence of of one of our ordinary businessman client as PG since last one year.
The landlady i.e. the clients wife, aged around 50, having single daughter pursuing college studies outstation is motherly affectionate to me since begining. Landlady’s hubby remains extremely busy with his business. Within short span of time, I developed close intimacy with the motherly landlady, enjoying talking to each other for long hours and almost regular hangouts in the evening. During such visits to mandir, market & other places, physical contacts with her attractive robust big breasts evoked my temptations, which she could easily understand. Her indulgence led us to develop an unique relation of enjoying intimate hugging & fondling each other in privacy at home. The entire acts remains unuttered from either side, even while I resorted to foreplaying, quizing & sucking her blouse lifted unveiled beautiful big breasts. Though she was visibly consenting me to proceed further yet I restricted myself to foreplaying & comforting upon her robust big breasts only (becoz of my past experience of total loss of interest after having sex with an elderly neighbour women in my college days).
While continuing such semi-physical secret relation with her for almost 03 months, a matrimonial proposal for their daughter with me was mooted by her hubby with my parents. Me too liked her daughter and had no apparent reason to decline and accordingly it has been decided to have our knot tied after completion of her studies by few months.
Thereafter the semi-physical secret relation with my would be mother in law should have been stopped. But incidentally her hubby went outstation for few days, when she desired me to sleep with her at night. On the first night itself she held my erected stout rod to ‘come in’ and enjoyed highest satisfaction with shivering orgasm. Since then she became badly crazy of having sex with me regularly for the last three months.
I really can’t resist having regular sex with my would be mother in law and it’s just impossible to decline the agreed marriage with her daughter at this stage.
It may be easy blaming me and advising impractical. But what happened and what’s happening were unavoidable.
Anyone having an understanding mind may please advise ‘How do I come out?’