Spoiler
He himself later said it wasn't a real relationship. He dated her for a month because she insisted, and he thought FL had rejected him. All they did was talk and once held each other's pinkies. Then he ended it, and she simply wouldn't let go, but she realized she had no chance when she saw him with FL. The thread was closed very quickly.
He didn't even consider it and ignored her until he returned home and saw FL in her friend's arms (she was actually drunk and he was just carrying her home, but ML didn't know that). After that, he returned to the US and didn't care because he thought it was truly over and they would never be together. He also identified with this girl because she told him that if he didn't give them a chance, she would be just as hurt as he was now. So he agreed for a month, but then ended it because he knew it was pointless. He didn't do anything with her. And then his mother died right afterward.

Droped it as soon as i found out that he has an Ex-girlfriend. I just really hate it when the Ml loves the Fl but gets together with other women…thats just a*shole behavior