<human>: Can you condense the text into a few key points?

Hey, a few days ago I asked if I should break up with my girlfriend due to my student loan debt. I decided not to and I have been super happy with my decision. Anyways some new events have happened and I don't think I should continue my relationship.

I got home on the 19th and went to my girlfriend's house to surprise her (she still lives with her parents during break) anyways her dad and I were talking and he asked how her visit was two weeks ago. I was confused because I hadn't seen her since Thanksgiving but I assumed he was confused because she told me she was going to one of her friend's that weekend so I just said it was good seeing her.

I told her how funny her dad was because he couldn't remember who she was visiting. She told me he just remembered wrong because she did go visit her best friend (Lindsay) because there was a party going on. That was good enough for me, I was glad she was going out and having fun without dragging me to a party. I find them stressful and don't like being with too many loud people.

I ran into Lindsay and I asked her how was the party trying to make small talk. Lindsay was confused and asked what I was talking about and I told her what my girlfriend said to me and Lindsay told me she hasn't seen her since Halloween when we all went to a party at my school.

She lied to me about going to see her best friend and I don't know how to bring it up. Should I ask her because she told me she was with Lindsay that weekend. What should I do Relationship_Advice?
<bot>: Girlfriend's dad asked how her visit was, I didn't see her that weekend. She told me she went to her best friend's school. Best friend said she hasn't seen her since Halloween.