Is my marriage over i dont know please help!?

my wife left me after being married for six months to be with her ex and live with him. she lived with him for 6 months and then decided to come back to me because he beat her all the time. after 3 months of being bac together and trying to work it out i stumbled on my phone records and she has been textin another man everynight i go to work. i only work 6 hours a night and the whole time its them texting and sending pics. she said its all platonic but she was hiding it knowing when i found out it wouldnt be ok with me. and she said she didnt hide it even though she deleted all her text from him because she knew i would find ou just like i did before she left me last year for her ex she was lying and being decietful. i love her and want to be with her i need advice please.its 40 to 50 text every night as soon as i leave for work .