No definitive answer exists to this question as all men are different and possessiveness is relative. That said, it is possible that Korean boyfriends may be more possessive than those from other cultures due to certain cultural norms and values. For example, in Korean culture, it is common for men to be protective of their female partners and to want to be in control of the relationship. This possessiveness may manifest itself in different ways, such as jealousy, controlling behaviour or a need for constant communication. If your Korean boyfriend exhibits any of these behaviours, it is important to have an open and honest discussion about your needs and expectations to ensure that both of you are happy and comfortable in the relationship.