After 7 years, really???

I know im being petty! My SO had never really searched for any girls on IG so when i saw that he did i asked who they were? ( we look through each others phone so chill) he blatantly denied it! Umm no, it saves that shit unless u delete it! Im not mad that he looked her up im mad he is denying it! Like im dumb enough to believe him! So now im like ok who the fuck is she??? Why you lying for!?? I absolutely hate lying! Be straight with me and we can work it out! But don’t fucking lie!!!! So now im at the point where you either be real or we’re done because boy I don’t put it with that! He denies it again! Boy bye! Im single now and he’s sticking to his lies. Btw we have been together 7 years. Never thought it would end this way. Haven’t cried im too mad.