I wouldn't say there's something horrible about it. But if you're trying to invite someone to something, if there's social awkwardness, I think it usually means that they don't want to come, but they also don't know how to say no in a nice way because what kind of a weird person rejects generosity? Ignore the second part of that sentence, the focus should be on the first part, that it means they probably aren't interested in coming, and most likely also not interested in reciprocating the generosity.