How to win her in this condition

[cottage]

i m engaged to a girl and she had a past n she told me i forget everything abt him before engagement.

That guy left her and she was loving her so much. after 6 months of breakup she came

to my life and we r engaged. i know her since last 2 months and

she is the first gal of my life n i love her so much and i did my best

to impress her and i m still trying my best.

but i read her secret chats with her best frined and she is like i still remember

when my EX kissed me and i feel uncomfortable when my fiancee touches me

i was shocked after all these and told her tht we can breakup if u still like that guy n all

but she dont want to breakup and not me as well coz i love her so much

i think she has taken me for granted as she found me without any efforts

whereas that guy left her so she has more value of that guy.

now she says i love u but give me some time.(i dont trust her coz she has different feeling

in her heart but she shows me something different but i love her)

i m very confused but i dont want to breakup but i want her total attention towards me from now

whats after my all efforts she doesnt forget that guy? that will mess my life.

n i think i really put my best to impress her which didnt work out thast why

i am loosing my confidence. i dont know wht else should i do now? i cant sleep well

what should i do? thanks