My guess is that someone is in love with Barbara and when ever someone gets close they make the androids attack that person or maybe something close to that. Just a guess (=・ω・=)
This chapter was shorter then that others. Big disappointment... anyway if anyone is looking for something to read I recommend "Bad Born Blood" it's has few chapters but I find it a nice read
You know what else is massive?
low taper fadeee
Reacher
The wait time for the next chapter