My Girlfriend Gave me N2.7 Million, Don't Know if to be Happy or Sad, I need Advice

I love my girl but she did something good but it hurt my feeling badly. I don't know if I should be happy or upset. A good mind is telling me to leave her. But I don't know. Am a hustling and struggling business man now. Things have been hard and all, last year I used all my money for rent and medical bills, drinking garri and salt sometimes. This Year, January till current I made nothing in income maybe 50,000 Naira. My girl came to my place some weeks ago and showed me a cheque of 2.7 Million Naira, I asked how she got it. She confess, said she's tired of our condition and she had an affair with this man she met at the mall. I love her and I know she did it for me but I don't want to accept the money I want to leave. She cried and she said she slept with him only two times and she wont do it again. If I collect this money from her will I still love her? Don't know what to do ? That money can do a lot in my life now. Am sad my girl has lost her innocent in my eyes. How do I manage this? Please post anonymously, will I still be respected?