Should love the old people

If I return to my former love, I am afraid to face those I have met, I am really scared.

I am 35 years old, I had a 4-year relationship with her. The parents know each other and her family loves me. For many reasons, we broke up, my girlfriend had someone else, I still did. Recently I know that she and her boyfriend recently broke up, now she makes up in Saigon. I know I still love her, so does she. Should I go back to my ex-girlfriend? Please readers give me advice, thank you everyone.