Past perfect and past perfect continuous. '-------'

Kaoru had been sitting on the beach when she suddenly noticed the weather became very windy. She had been thinking about the most important decision she had ever had to make in her life.
Things had not been the same between Kaoru and Kenshin, her boy friend who worked with her, since she decided to continue study oversea in Texas. They had known about each other for almost 3years, and in that time they had never argued much. For the first time, she was starting to wonder if she was ready to break up with Kenshin. She was scared because the distance between her and him were too far. In fact, Kaouru was not really wanted to give him up. And with the flight only forthteen days away, she needed to make her mind soon.
Everything in Kaoru’s life had been going well. What she had been thinking was, she still young. She had never been giving up her dream. She felt guilty because she had never been left Kenshin alone.
After a few years, Kaoru had finished her study and she had been working at Verona Coffee Café as a store manager in Texas. She received a letter from Kenshin, and it was about, he had already moved to Texas and opened a new Coffee Café in Irving, where is a town in Texas. He had been waiting for Kaoru to be with him together, and he had invited Kaoru to be the Coffee Café‘s owner. It was surprisingly Kaoru and she had never expected anything. Finally, she had promised Kenshin to be the owner of Coffee Café. By ended up, they were married.