1. Personally, I think it is just a signature. Sometimes it represents the mood at that time. Don’t think too much about it.

2. The one you love is separated by mountains and seas, and mountains and seas cannot be leveled. It means a hopeless love, but the next sentence is "But if it were you, mountains and seas can't be leveled," there will be hope.

3. The translation of this sentence roughly means: The person I love is separated from me by mountains and seas, and I can never cross these mountains and seas, which means that this is a hopeless love.

4. Not necessarily. Many people just do it for fun or to look good out of boredom. Don’t think too much about it.

5. When two people are together, nothing will happen. From this, it can be seen that she wants to stay with you forever. You must make a good grasp of it. It is not easy to find someone who truly loves you. I wish you all the best!