During the summer, I dated a girl who later moved to a different country. Our communication during this long-distance period hasn’t been very strong. I tried to stay in touch, but she often said she was busy, leaving me as the one putting in more effort to keep things going.
Then, right before her birthday, she randomly texted and started a conversation, only to go silent again for two weeks afterward. Recently, she texted me, apologizing for not replying. She has mentioned before that she’s not great at texting, and I know she might be busy.
Should I reply to her, or should I just leave it?