My self control to buy things for my kids is uncontrollable because I didn't have much as a kid, so I want my kids to have everything they want.

I understand she's bi, but to be honest idk a girl who hasn't done that when she's drunk. Your gf might not have thought that you'd look at that as cheating, but more of a way that she thought may turn you on? I only think you should continue the relationship if you're not going to always throw it in her face that that had happened.