No, it will only end in tears. No good can come from pursuing this obsession.
It is easy to see why this kind of thing happens. Your mother-in-law is an older version of your wife, and with her being widowed, it is inevitable that your feelings for your mother-in-law have grown, partly out of a desire to comfort and protect her.
You must resist temptation and avoid putting yourself into situations where your curiosity might get the better of you. These feelings have more to do with male fantasy than real emotions, so leave it at that; no man should get between a mother and daughter; it's a complex enough relationship at the best of times.
It's unlikely that your attraction is mutual, in any case. Even if your mother-in-law is now in the market for a relationship, it's far more credible that it will be with someone of her own age group. Possibly someone she has known for a long time as a friend.
It is easy to see why this kind of thing happens. Your mother-in-law is an older version of your wife, and with her being widowed, it is inevitable that your feelings for your mother-in-law have grown, partly out of a desire to comfort and protect her.
You must resist temptation and avoid putting yourself into situations where your curiosity might get the better of you. These feelings have more to do with male fantasy than real emotions, so leave it at that; no man should get between a mother and daughter; it's a complex enough relationship at the best of times.
It's unlikely that your attraction is mutual, in any case. Even if your mother-in-law is now in the market for a relationship, it's far more credible that it will be with someone of her own age group. Possibly someone she has known for a long time as a friend.