She loves texting me and shows affection, but haven't seen her in a month?

So this girl im dating... since the last time we hanged out at a concert it was super fun and we both had a great time, then we made out in my car for a little bit. That was 3 weeks ago, haven't seen her since then she says she is too busy with school, but she always texts me and tells me she loves me, even has her WhatsApp profile picture with me. But im honestly getting tired of just texting and she never plans dates for us. What does this mean?
She loves texting me and shows affection, but haven't seen her in a month?
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