Ginny wanted to be diplomatic, she honestly did, but there was a part of her that was continually frustrated with George and his mourning of Fred. She knew it was something he would never get over, and that he had the sort of pain of loss that no one else could really understand. But, at the same time, Ginny had grown up with Fred and she knew the last thing he'd want was for George to mope around, ignore his birthday and be miserable.
Sometimes she was surprised Fred hadn't figured out a way to haunt George just to tell him off.
"Your birthday." she finished for him, taking the chance that George was so desperate to talk that he wouldn't explode at her for daring to say it. But honestly? Yelling at her might do him some good, and Ginny was willing to be the momentary punching bag if it got some issues out of George's system.
Listening to the rest of his short explanation there was another moment of silence where Ginny tried to fill in the gaps and imagine the scene. She figured she was assuming a lot of things, but George wasn't one to give you details unless he was telling a good story. This one was as opposite as it got.
She felt for him because she knew these two months were the most difficult ones that George had to face every year, but there was a certain level of selfishness to both he and Angelina's actions. It was true they weren't married, but they had children and were in a committed relationship. Having a day of mourning wasn't an excuse for looking for a fight, on either of their parts.
"I think you both need to grow up." Ginny said, her eyebrows drawn together and a frown on her face. "If you didn't want to be bothered then you shouldn't have gone home, and Angelina should have had the common sense to know to leave you the hell alone." she sighed, reaching up to rub at the bridge of her nose, suddenly inexplicably frustrated with the both of them.
"If Angelina doesn't want to be in the relationship, then you need to let her out of it." And truthfully, the part of Ginny that was firmly behind George in urging Angelina to get married was considering a revolt from that idea if Angelina didn't want to be in the relationship and they couldn't stand being in the same house. "I think you definitely need to leave her alone about getting married because you'd end up divorced if you ever convinced her."