My ex-gf would check my phone for any trace of women and I'm still confused

I'm not sure if this is the right place to post this but I don't know where else to go and I'm still confused about it.<br><br>So my ex-gf is like this jealous know it all type of woman, she thinks she knows better than anyone.<br><br>So one day she tried to check my phone while I'm busy and I see her, I ask her what are you doing? And she tells me that she needs to see if I've any communication with any women, she tells me that she needs to make sure I'm not cheating on her which of course I'm not.<br><br>I tell her that she's being unreasonable and that she has no right to check my phone or to see who I'm talking to, she tells me that it's my fault that she's acting the way she is and that if I've nothing to hide I would show her, I refused and she called me a sicko and left for her parent's house, then she blocks me and spread rumors about how sick I am.<br><br>I don't know if this is normal behavior for women or not.