drama w/ my man's ex

so recently this girl has been giving me a hard time and its actually so annoying. she tries to make me feel bad about myself and is always trying to one up me. KEEP IN MIND... this is my bfs ex who he cheated on me with (lore drop). BUT... every time i would talk about something me and him did together she would have to be like "oh we did that too" then proceed to mention how they did something better/spent more time together. like ok girl i get it u dated for 3 years and we've been dating for 7 months. but YALL BROKE UP. LIKE WTF she also LET him get away with cheating like 5 times over the span of their relationship. anyway, hows your night going 

omg as im typing this im getting the most gut wrenching stomach ache. idk what i expect tho i just ate a whole bag of cheese doodles.. bye.