I work at a large company but have a small team. I don't like my job and am looking for a new one. I do however like my my co-workers but am not friends with them. I try not to discuss the wedding planning with them because I don't intend to invite them. But, they ask me about it. One of them has even alluded that she has saved the date. We already have over 200 people on the guest list and a very limited venue and budget. Is it ok not to invite them?