This is definitely a good thing to be aware of.
Keep these things in mind, he should respect her autonomy. He can be concerned for her, but she’s a person who is capable of making her own decisions and that should be respected. If he’s being too possessive, or controlling, he should be called out on it, by the girl herself or by someone else. Maybe part of his character development is to learn how to be in a good relationship.She’s not an object or a prize to be won.