If these are the same people from church, then you are technically now harassing them. They were never your friend, and you need to accept it. Just move on, and learn from your actions. They never really wanted you around but they tolerated you at first. Now they want nothing to do with you and you need to stop contacting them before they start taking further and more serious actions to get you to leave them alone. And if this is someone different, just keep in mind that you can't make the same mistake, do not force yourself into people's lives and don't try to force them to invite you, otherwise you'll get the exact opposite result which is rejection.