Does she not love me anymore?

Okay well me and this girl started hittin it of after school. We have been talking like everyday since school was over. Whenever we go to sleep she will tell me "Goodnight! I love you!" and sometimes she will be like "hey babe". Well just last night it seemed like the conversation just was not like it seemed to be. Then she tells me that she is texting some dude that she was going to talk to this is how she said it "well im talkin to so n so haha lol". And then I replied and did not get back an answer. I just replied ha well hopefully he does not give youa better conversation. No reply, then today she has usually texted me by now. I start the conversations off just as much as her. But we got really im mean really close. she invited me to her house when she gets back, she said that she could see us being married. Please do you think she is not into me anymore??? Help?