People who have the first vowel of 'E' in their name are attracted to the strong decisive qualities represented by the 'CO'. They are more feeling by nature and can appreciate the steadfastness and decision making ability of the 'CO's. Plus, the 'CO' know how to nurture others, yet they expect loyalty in return, which can be fairly demanding. The 'E' allows comments to roll of their shoulder, not taking things personally, and are great listeners, thus people with the first vowel of 'E' in their first name will automatically relate to the 'CO' and balance that combination of letters.
In contrast, the first vowel 'A' doesn't care if it leads or follows, it just requires the leader to be competent. Will the 'CO' be competent? You bet. However, the 'A' will still have some conflict with the 'CO' as the 'A' is highly sensitive to criticism and the 'CO' can always find fault, need someone to blame, or refuse to see how their actions helped create the conflict. Thus, the 'CO' and the 'A' will only get along for short time periods, but too much togetherness makes the 'CO's dominance too much to take for the person who has 'A' as a first vowel.
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An example of this type of relationship is with Courteney Cox and David Arquette. Per 'Mail Online' "David Arquette revealed that his and Courtney Cox's relationship is 'better than ever' despite his bad behaviour" immediately after their separation. Long periods of togetherness cause the 'A' to get angry at the 'CO' for constant micromanaging and that anger will eventually discharge. Sure, the relationship is now better as now they have shorter time periods together. It'll be interesting to watch this couple with their child, as their child is named Coco, which is a double demanding to have it her way and be in charge.
Interestingly, Brooke Shields first marriage (1997–1999) is another example of a strong dominant letter combination, the 'BRO' matched with the first vowel of 'A' in Andre Agassi. The 'A' cannot be dominated for long without causing resentment. Yet, the 'E' deals with beautifully. Brooke's current marriage is to Chris Henchy (2001–present), who has learned from his parents and environment how to operate like an 'E' (first vowel in his last name, versus his first name), thus being able to have a longer lasting relationship with Brooke.
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Is the 'CO' or 'BRO' a hard combination to have around? Just for some. In each name there are gifts and there are challenges. There are pleasant name comparisons that work and there are challenging names that work for a temporary time and other names that will clash from the start. Just as names reveal potential conflict, the names also show how to solve that conflict, if the people are wiling to adapt. What does your name say about you and what does it say about your relationships? More information can be found here.