I'm going to copy the chat record between my girlfriend and me and send it to her. There are thousands of text messages! What should I do! Give some advice

Actually, I have a better suggestion. Instead of copied text messages, they are all very rigid things. There are no dynamic elements.

Why not make a slide show yourself: attach some of yours, hers, yours and hers, attach your chat telegrams (choose some that you think are important), and match them with music (preferably her favorite or romantic songs).

When it's done, ask her out, find a romantic place, sit down, have a cup or coffee or go somewhere else before. Then put it in her mobile phone (as for how to put it, you have to find a way yourself, so that she doesn't find out). When you are together, you have no intention of opening it and watching it together. Isn't it romantic?

It's a surprise. It looks more emotional.

Or you can make your own paper-cut paintings with photos, which is better.