She’s with you because she likes you. She started dating you because she likes you. She talks to you for hours nonstop because she likes you. She picks you over all her friends because she likes you. She fights with her parents to go out with you because she likes you. She’s your girlfriend because she likes you.
She ignores you? There might be something up. She has other things in her life to deal with. Before jumping to conclusions, always get her side of the story and calmed think it through. What has she told you about recently? Has anything been bugging her? Any family events she needs to attend? Is she going somewhere? Does she need to get something done without distractions? There are many things that could be going on. Her “ignoring you” might be her being busy or her phone being dead or her parents grounding her, etc.