If you're truly in love with this woman. Then. Make her jealous. Do what you can to.
If she doesn't get jealous.. this all depends on her maturity level!.. then.
One) she's mature
Two) she was never, or is no longer attracted to you mentally and or physically
Three) may not want to waste her time with you no matter what you do by she ignoring you.
There may be other reasons.
Want to discover the level of her maturity level? Have someone call her crazy.
If by chance one were to call me crazy, I would probably depending on where and how I'm sitting or what I'm doing at the time.. if couch then I after reading the statement would lay my head against the back of the couch holding my phone still or might put it down beside me I don't know say to myself in my head yeah you're probably right. I have multiple personalities, different moods etc.. there's no telling whether I would actually reply or not and if I did there's no telling what words I would use.