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It seems like the person who wrote this was getting the title of the first TV episode ("The Girl Who Overcame Time... and the Boy Who Was Just Overcome") mixed up with the subtitle of the first movie ("Affections Touching Across Time").
Both are references to the novel, "The Girl Who Runs Through Time," and the 1983 movie adaptation, "The Girl Who Overcame Time."
Does the Doctor Who example really qualify? The introduction to the topic reads "Not just motivated by it. CAUSED by it." Rose's dimension hops may have been motivated by love (at least in part; she gives several reasons) but they were caused by a machine built and operated by alt-Torchwood staff.
My answer to your question may be judged by the fact that I'd already removed it before I looked at the discussion page.
I agree: The trope should not include all spacetravel, timetravel and dimentiontravel stories where love is one of the topics included in the story. I havn't seen the episode myself, but from your discussion it really doesn't seem to fit the trope.
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How well does it match the trope?