When you do something for a long time, it will form a so-called habit. Every time you like someone, you will form a habit, whether good or bad. For example, I was used to saying good morning and good night before being laid to rest, and I was used to having the back of my hand surrounded by his warm palms during class in winter...
But I've been alone for so long and I'm still not used to it, so I practice being alone, waiting for someone, and learning to get used to being alone.
Maybe, after a long, long time, I will get used to it.