There are many variations of the damsel in distress plot. Leia in ANH was actually somewhat unique in that role, because she practically rescued herself.

You could always turn the plot around, with Anakin getting captured and his wife having to rescue him. For example, she could escape just as Anakin arrives, and he is taken captive instead, leading Obi-wan and her to rescue him, or perhaps both Anakin and Obi-wan are captured, and she and several other slaves work to free all of them.

There are many variations. It's comforting to have an understandable plot point at first. It just shouldn't end in an expected way.