It's important to understand how our handy Verizon Messages+ features work. I'm happy to clarify your concern about the conversation bubbles. The conversation bubbles don't signify anything by default. Rather, they are meant to be customized by you as a way to organize your contacts. For example, you might want to color code your work contacts all with the same color. To change the color of the bubbles: tap the three dots in the top right corner of the Verizon Messages+ app, select "customize"  and then "conversation bubble". Does this clarify? Also, are you still having issues with sending messages to that one contact? If so, do they have an iPhone?

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