Can we talk?

My inlaws live a BLOCK away from us. My SIL goes to their house every day since she has been unemployed(another story for another time). A BLOCK away. She got married in 2005 and has no children yet, which has created a tremendous amount of jealousy mixed with a good dose of bitchiness. Oh, did I mention she is 45? 45 years old and acts like a naive 18 year old. Anyhow, she just recently moved back to this area. In September. We have yet to be invited to her home. Hello? It is May.... I have so much to write, but the little ones are climbing all over me. Just a question.....would you have at least stopped by once....once to see your nieces and nephews? Even if you are so overcome with hatred for your SIL because she has children and you don't? Would you act like an adult and try to have a relationship with them? Would you surprise them with little gifts or phone calls or mail once in awhile and not only on Christmas and their birthday? Would you? Or am I just over-reacting?