How often do you text your friends? Thoughts on this situation appreciated

In the past, I had a friend who texted me that "things seemed weird between us". I asked her why she felt that way (which she gave no reason besides things seemed weird) and assured her nothing was wrong. The only thing I could think of was that we hadn't texted in a week and I feel she can be clingy and has an unrealistic view on things like who texts first, keeps the convo going etc.

There are times when I feel I have to force a conversation just to show I reach out because if I don't, I think she takes that as being a bad friend. Thoughts? Also, how often do you text your friends?