Can I get multiple visa?

Rian, if you have visited China before, you may get a multiple-entry permit. If not, it's not very likely that you can get it. Anyway, you can have a try. But even though you apply for the multiple entries, the officer may just give you a singe entry.

First, prepare all documents that may be required, including your passport, a copy of your passport, a filled-out application form attached with a recently-taken bare-headed photo of yours, an invitation letter and a copy of ID card from your bf, and a financial support proof if you are a first-timer. Then go to the consulate to submit the application documents.