How to get rid of suggested clusters of groups when starting a New Message??

So you go into Messages and went to compose a new one, and start typing in the ONE person you want to text, and about 20 clusters of grouped together numbers came up with that ONE person in those groups. (Evidently they are stored numbers and contact groups of recent group messages you have been a part of with this ONE person in that same text group).

Is there really no way to turn this off or keep them from popping up? By the time you scroll through the mess of stored numbers and contact groups that have been saved from messages - it's just a big pain. I don't want to turn off 'group messaging' but there has to be a solution to keep Messages from storing those recent contact groups and them coming up when you want to text and type in one persons name.

How do you remove these annoying clusters of suggested, recent text groups????