Whatever you do (txt or talk) NEVER tell a target you "MISS" her before you have F-closed! And, even then, use it sparingly. Same goes for "I love you." Don't tell a woman you love her until after she tells you first.
If you really want to hook up again, stop txting & call her. If you get her voice mail just say, "It's Kefu, call me." No please, thanks, bye or anything.
You already know what to do if you don't get a call back so I won't go into it.