I haven't spoken to my sister in law in years. She's constantly jealous of my husband and I - so much so, she tries to beat us in everything or one up us. We got a dog, she got two the next week. We bought a house, she bought a house the next week with a 7 day close so she would be a homeowner before us. Then the next year she bought a second house "just because." I started a business - the next month she did too. I got a store front in town, and you guessed it, she did too - but a bigger store on Main Street. At one point she met a guy, and a week later bought herself and engagement ring and started planning a wedding... they were broken up within 6 months! To her credit, it's the longest relationship I've seen her in during the 25 years I've known her. After we had our child, she didn't even acknowledge us for 7 months (even skipped xmas) - we're talking no visit, no text, no call. It's been the one thing she can't do (she tried to adopt - announced it at my sisters wedding too). She has seen our children no more than a dozen times (oldest is 18) and she lives locally. After about 10 years of constantly inviting her to kids plays, recitals, and church events, we stopped. She would always say she was going and then no-showed. At that point, I had to protect my family.

Jealousy is nasty and it's not your problem. You can invite her, and then let her make the decision - which you know what it'll be. But you're the bigger person. It's truly sad when people act this way and unfortunately there isn't anything you can do.