I'm sure it is going to be strange for you with whoever she dates. It will take time for you to adjust after losing your dad just keep in mind she is happy now and that's a good thing. You could try to minimize occasions where you would be with them together until you feel better about it. Best of Luck. Sorry but this is wrong. If you've been in the position, not only is it awkward but what happens when the parents fight
11 Rules for Supporting Your Aging Parents and In-Laws
14 Signs You Have a Toxic Mother-in-Law and How to Deal With Her - WeHaveKids - Family
Caring for your aging parents or in-laws is becoming an inevitable part of life because people are living longer. But becoming a caretaker for an elderly relative can also cause friction in your marriage. As a result, newlyweds should come up with a game plan - if possible, even before anyone has health problems - for dealing with aging or sick parents and in-laws. To keep your marriage intact and still be a good son, daughter, or in-law, here's what you need to do.
In the United States , the legality of incest varies widely between jurisdictions regarding both the definition of the offense and penalties for its commission. In all but two states and the special case of Ohio, which "targets only parental figures" ,  incest is criminalized between consenting adults. In New Jersey and Rhode Island, incest between consenting adults 16 or over for Rhode Island, 18 or over for New Jersey is not a criminal offense, though marriage is not allowed in either state. New Jersey also increases the severity of underage sex offenses by a degree if they are also incestuous, and criminalizes incest with year olds the normal age of consent in New Jersey is Ohio allows incest between consenting adults only when one party is not a parental figure see table below to the other.
Lana regularly offers support to women who deal with narcissistic abuse and other difficult family or relationship issues via her blogs. Mothers-in-law are notorious for being controlling, judgmental, critical, and overbearing. And like any toxic person, a toxic mother-in-law is a soul-sucking parasite that feeds on your misery. To protect yourself and your loved ones, you need to know your enemy.