Agreed with the OP and most of the replies so far. I almost never double text; the lack of reply IS the reply.
The one time I will use a double text is when I asked a question or I'm waiting for confirmation on something, and I think there's a possibility she forgot about it (from time to time I'll receive a new text, get distracted by something else before I can reply, and with the text now marked as "read" it can take a while before I remember to get back to it).
In that scenario I'll send "..." and leave it at that. The ellipsis expresses your desire to receive a reply without coming off as needy or beta (assuming you've left a good amount of time between it and the initial text).
Most of the time this leads to a quick reply (usually with an apology and/or explanation as to why she needed a prompt) and the conversation resumes.
The one time I will use a double text is when I asked a question or I'm waiting for confirmation on something, and I think there's a possibility she forgot about it (from time to time I'll receive a new text, get distracted by something else before I can reply, and with the text now marked as "read" it can take a while before I remember to get back to it).
In that scenario I'll send "..." and leave it at that. The ellipsis expresses your desire to receive a reply without coming off as needy or beta (assuming you've left a good amount of time between it and the initial text).
Most of the time this leads to a quick reply (usually with an apology and/or explanation as to why she needed a prompt) and the conversation resumes.