Messed up my past internship - How to pass background check

I messed up big time and in need of some real advice here, please hear me out.

Earlier this year, I did a part-time internship at a very small physical trading shop (only 2 employees). The problem was, the guy was blatantly lying about what the company does and the job description - which makes the role unideal for me. I don't mind a few white lies here and there, but this was too big of a lie and was a dealbreaker for me.

That being said, I fucked around for 2 months - and started some side projects on my own (outside of work hours) and actually got some real job done for the company. But then an opportunity came up at an MM and I quickly bailed out of the internship. Now here is where I messed up, I was so salty at my boss that I didn't tell him that I was leaving. I just stopped coming to work. He also did not care and did not reach out to me.

I'm now recruiting for 2021 SA. I really want to put this on my resume but I am worried that my old boss would refuse to verify the internship with HR during background checks. Is there a way to get around this?