Should i just let her go?

I am 29 years old man, involved with a 23 year old women.We have been dating for 7 months now, i love her, she always says she loves me back but the problem is:-

1. during December holiday she sometimes did not answer her phone/ or one day dropped my calls.
2. During December she had a meeting with her EX boyfriend (for what reason, only God knows)
3. On the other hand she was flirting with some other guy (she said they were just flirting).

Only found about the above issue in February this year because I recorded a conversation between her and a friend (Whom i don’t like and she’s aware).

I really want to be with her for the rest of my life but my only problem is re-gaining my trust. whenever she goes out, i just feel like she just going out to cheat and when she comes back, i become moody, and we end up fighting for almost nothing.

I now requested her to give me a break, knowing deep in my heart that i dont want a break. I am not happy anymore and just want my way out if i have to. She suggested that we may need to go for counseling and asked for a second chance.

I would like to know if it is wise of me to try and fix all the broken tissue or should i just let her go? you response will be highly appreciated

Thank you in advance.

Anonymous,
Pretoria