My boyfriend is already an Australian citizen. When can I get my nationality after marriage?

Marrying a boyfriend with a PR visa does not mean that he will have a PR visa immediately. However, you can apply for a PR visa for spouse immigrants immediately, and of course you can also apply for a TR (temporary residence) visa, which is easier to be approved and can be transferred to PR after two years.

Judging from your situation, you can get married first, and then apply for general skilled migration as the principal and deputy applicants respectively. This not only saves procedures and costs, but also allows both parties to get 5 bonus points.

I wish you happiness.