I broke up with my GF for many reasons & now I want her back whats my deal?

All the BS & I still want her back in the worst way,she drove me crazy & complained about the smallest of things,her birthday I didn't do enough,I teased her once in a cute way & she just got PISSED!!! I went on a golf trip I have been doing for years & she was annoyed & that was only after 4 months of dating,then I moved in with her & her 2 kids & the drama amed,she didn't like my friend Angela for some odd reason & lied about things she did to get fired at work(she worked with her) & never realizing it was her jealousy kicking in,then even though I spent 95% of my time with her she never trusted me because of Angela being my friend,so she started going through my phone & looking at my texts & seeing who I called getting on my computer & going into my cookies to see if I was doing anything or looking through my history,& I couldn't understand her mistrust I wasn't doing ANYTHING!! so I left her for 3 months & then went crawling back for some reason thinking everything