Day after Easter

an incident on Friday made me realize I need to be a better person. My mother-in-law, who has been very critical of my Catholic upbringing, told me that Catholics did away with Lent. My husband and his parents were going to get lunch, and I reminded him that it was Good Friday and that limits my options. (my husband, by the way, brought me back a Cobb salad with chicken and bacon. I couldn't pick it all out so I did without.) His mother chimed in and stated that "Nobody eats fish on Friday anymore. The last Pope, well he got together with all these religious leaders and they had a big conference and they decided to do away with Lent." Well, I didn't receive that memo in my church bulletin. I told her that nobody has to eat fish, but they do need to abstain from meat on Fridays during Lent. I told her that she may be confused with the Pope allowing Catholics to have meat (corned beef, especially) for the special circumstance that St. Patrick's Day fell on a Friday last year. She was unwavering with her statements, which made me angry, because this woman is as old as my mom, and I felt no one of that age can be that clueless and that she was fucking with me. She goes on to tell me that half of her husband's family is all Catholic and they don't participate in Lent, and that makes her some sort of expert. She also said she has many Catholic friends and they don't abstain from meat. She has in years past fed my kids McDonalds on Good Friday despite my requests, and felt justified in doing so. My sister-in-law told me once that her 5 and 7-year-olds said after my daughters Baptismal mass that they thought my religion was stupid because we prayed to Mary. Really, they said that? Trust me, there is no Hail Mary said during mass. They all have been miserable to me about my beliefs so I got pissed. In reality, she was probably confused and referring to Vatican II in 1966, where Lenten rites were relaxed some and Latin was not the primary language of mass. I was born after that, so I had no clue. Thankfully the internet was able to educate me and by my emails to my mother-in-law, was able to educate her also. I feel angry at myself for not having more compassion for her lack of knowledge and now I have feelings of true pity for her fearing that she has made these incorrect remarks to other Catholics, and hopefully they were good enough Christians to not laugh at her.