Is it normal for multiple people to always stop texting you all at once?

Since cell phones first came around, they've become my technologic attachment. As the newer generations of phones came out, I was also introduced to text messaging. While this was convenient and still is to this day, I've always knit-picked at the drama its brought on. Sometimes people I text are so sneaky in hiding behind their words and deceitfully playing you, and it frustrates me to the core. One of the earliest frustrations I've had in due to the texting phenomenon is the strange and ridiculously coincidental occurence of a group of people you're texting, all at once, ending their replies back. Its enough to have one person stop abruptly, but there have been occasions where up to six have done this to me simultaneously. Texting was invented to further expand the convenient forms of communication, but it seems to have made things more complicated instead. Is this normal to happen?