u/SceneComfortable8501

Hi everyone, just wanted some advice on what to do in my situation.
I’ve been in a relationship with someone of 8 years now. We’ve had our ups and downs as anyone does, but 6 months ago we had a breakup that lasted two weeks. Since then things have been fine but I just found out that she had slept with someone during that time. I asked her multiple times what happened because I knew she spoke to someone in that two weeks but she told me that nothing happened. She finally comes to me and tells the truth yesterday but I basically had to pry it out of her. I’m not sure if I should continue my relationship or not. She wants to, but I’m unsure.
Would you stay in the relationship or break up?