You need to move the first "between" into the first bullet point, lest the second and third points have "between" twice.
Unrelated to the visual breakdown, there's also confusion (for me, at least) as to whether the first and second points have equal prominence, or if the second point should be of intermediate prominence; the word "usually" shouldn't be introduced except to slightly diminish, but I consider it to be a synonym of "typically"... are we to think the first is 90% and the second is 90%^2?
Oops, maybe I wasn't clear, sorry! This is what I was going for...
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Typically, there is an avoidance relationship
- between a man and his mother-in-law
- usually between a woman and her father-in-law
- sometimes between any person and their same-sex parent-in-law
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So the first point is simply typical, the second point is usually typical, and the third point is sometimes typical. The issue I have is not knowing whether the usually+typical construction is redundant or compounding.
- Typically, there is an avoidance relationship between a man and his mother-in-law
- usually, between a woman and her father-in-law
- sometimes, between any person and their same-sex parent-in-law
Agreed it is written a bit awkwardly.