My gf [22/f] broke up with me[22/m] a month ago when she realised i got a tinder match.

i was on tinder like about 4-5 months ago, i was dating her, and we were not exclusive, but we had been dating for about 3 months i guess. when she found out, she told me that she didnt like it and was very mad at me, i lied to her that i didnt get any matches, i just didnt want to lose her, i deleted my account and uninstalled it, havent looked back. but about a month ago she read that i got a match, in a conversation i had with a guy friend of mine,while snooping through my phone, i did get a match and i did follow up on it, i asked for the girls number and didnt get it. we were not exclusive when i was tinder, but after she asked to be exclusive i havent looked back at it. so she realized this recently and broke up with me, she called me a cheater, and has blocked me everywhere. to be honest, that was the only match i got on tinder, plus every weekend she had this we need to breakup talk. i really wasnt sure if she would pull through with me. i didnt even get a chance to explain. thats what is sucking the life out of me.