Those are the exact words Bad Touch Yakushi used to describe them. Are your reading skills this good all the time?
The phrase "love sick puppy" comes with the connotation of being submissive, depending their happiness on their lovers, and being blinded by one's love interest. This phrase does not at all apply for Hinata.
Hinata has stood up to Naruto in the Bolt anime and Chapter 615. Hence, not submissive.
Hinata has shown to be able move past Naruto, as in The Last she was able to let go of him when she thought he loved someone else. Hence, not dependent.
Hinata has shown to make decisions that go against her love, like abandoning Naruto right after he confessed to go save Hanabi. Hence, she is not blinded by love.
Hinata went from this to this.
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From this to this
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From this to this
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Meanwhile, Sakura is the exact same person she was back in chapter 3... more or less.
And yet Hinata has her Hyuga Clan plot as well. :lol You Sakura fans are so aware how bad she is that the best you can do is try and drag Hinata down to her level.