It really depends on how you define love.
Much of what's understood to be "love", judging from own observations, is actually inter-dependence. For whatever reasons, good & bad, or a mixture of the two... . I personally know of very few relationships where 2 people selflessly, whole-heartedly commit to each other, "for better or for worse". When that sort of whole-hearted commitment to the whole is not present in both partners, the person who cares more about the nature & survival of the relationship is definitely in the more vulnerable position. They will most likely invest more of themselves & therefore have more to lose than their more detached partner. They will also suffer more if/when the relationship ends.
(But don't misunderstand. I have nothing against love. It's just what most of us
confuse for love that's the problem.
)