My girlfriend lied to me, should I trust her again?

She told me she was home sleeping, but I found out she wasn’t. When I confronted her, she changed her story multiple times and later said she stayed with coworkers after drinking. She claims she lied to avoid making me worry, and swears she didn’t cheat. But now I can’t shake the feeling that something’s off. We were even talking about getting engaged. What would you do in my place?

My girlfriend lied to me, should I trust her again?
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