My husband and I have next door neighbors who we've been friends with since they moved in over a year ago. They have children the same age as ours who play together really well. We've invited them over to our house for a few parties (parties that include other families inside and outside the neighborhood). We watch each other's dogs while the other travels (so they've entrusted us with keys to their home and we have to ours). In late December, they invited us over for a New Year's eve party, but we decided to stay in for several reasons (we had just returned from a hectic travel schedule over Christmas on 12/29, I had a serious doctor's appointment on New Years Eve (getting test results back), and as a family, we just needed to have a quiet night relaxing together). So, we politely declined without getting into too many details. Anyhow, they had a huge party for the Superbowl, but did not invite us. There must have been 45-50 people at their house, many of the families were other neighbors. I feel snubbed, and embarrassed. Even though we're not the closest of friends, I thought we had a friendly relationship where we included each other in parties, but clearly that's not the case. I have not said anything to the neighbors, nor do I plan to. I'm just curious as to what I could have done that would have led to the snub. We're planning a big party in May and up until now it had not crossed my mind to exclude them, but now I'm wondering what to do. I have a history of allowing friends to take advantage of me (where I was always the one planning/hosting/providing food for everyone), but I'm trying to avoid these one sided relationships that hurt my feelings. Do I invite them to our next party?