It really depends on the context and the relationship between the characters. Sometimes it's a sweet and romantic gesture, but it could also be inappropriate depending on the situation.
GL manga refers to girls' love manga. It typically focuses on romantic and emotional relationships between female characters. The stories can range from sweet and innocent to more intense and complex.
No, they're not the same. Manga comes from Japan and has its own unique style and storytelling techniques. Manhwa is from Korea and has distinct characteristics too.
The odds of GL manga becoming mainstream are increasing. More people are looking for diverse and inclusive stories, and if GL manga offers unique and engaging plots, it has a good shot at wider popularity.