Should I let my mom enter into a relationship?

It has been 15 years since my parents separated and I did not know the reason behind that break up. After my mom's sacrifices for my sister and I, she deserves to be happy. I know that. However, I don't want her to just jump over the person she had just met at a foreign socials event. She's my mom, so I am concerned for her. When I told her to be familiar with the man first before committing, she got mad at me. I am not being judgmental here, I just want to know she is safe with whoever she wants to be with. I am a man myself and I know when the guy wants a serious relationship or not. How should I explain that to her without appearing villain?