Korea hit on foreigners normal?

My boyfriend (30years old) has traveled to South Korea for work many times. On his most recent trip, he sent me a message saying how much he loves Korea — the culture, the food, the people, and even the women and he make one women Korea friend/ that girl try so hard to text my boyfriend /hang out with him just only 2 of them in Korea and that girl knows that he have a girlfriend but she doesn’t care. She is way too much to talk to him more friend talked. But my boyfriend think is just friend no more than that. (I did read all messages). One thing that really hurt me was when he told me that when he goes out at night club/drink after work, he sees Korean women dressed in a sexy and provocative way, and it makes him think that he want to dance with them and flirt. (But he didn’t do it)That’s broke my heart, but I still gave him another chance, and we’re back together now. He also wants to move to Korea for 3years.

Since then, while we’ve been together, he’s told me he wants to learn Korean and has been teaching himself the language. When we go out and he meets someone from Korea, he tries to speak Korean with them — even when I’m standing right there. (I don’t speak Korean) and it makes me feel like I’m not important to him. — I’m from another Asian country — and it makes me wonder: why doesn’t he want to learn anything about my language or culture as much as he want to learn Korea

What do you think about this?