2. This behavior may be that single boys want to get closer to you by giving gifts to express their good feelings or further develop their feelings. Buying a necklace is a special gift, which represents a precious emotion and important significance. Buying by credit card also shows that he is willing to pay a certain economic cost to express his mind.
Faced with this situation, you can respond accordingly according to your feelings and attitudes towards this person. If you have a good impression on him, you can accept this gift and express your gratitude and response by giving it back or other means. If you are not sure about his feelings, you can accept the gift carefully and keep a certain distance to observe his behavior and performance. If you are not interested in him at all, you can politely refuse the gift and clearly express your position.
In any case, accepting a gift does not mean that you have any commitment or emotional response to him. You have the right to deal with this situation according to your own feelings and needs.
When a single boy swipes a credit card to buy you a necklace, you can consider some other factors. First of all, you can observe whether his behavior and attitude are consistent with his previous performance, whether there are other suitors or whether he pays special attention to you. Secondly, you can communicate with him to understand his real intentions and expectations for your relationship. Finally, you can also decide how to deal with this situation and your emotional attitude and reaction to him according to your own feelings and judgments.
In short, a single man buys you a necklace by swiping a credit card, usually to express his special feelings for you. You can handle this situation according to your own feelings and judgments and choose the way that suits you.