Between two religions???

I was raised in a Buddhist household but had a Western education, which meant that I am also close to Christianity. That upbringing caused me to become kinda wishy-washy with those two religions. I engage with Christianity during debates and non-familial social events, but I "switch" to Buddhism when family or native matters come up. My vision of "God" is closer to Christianity, but I also believe in things like Karma. To be perfectly honest, I've also prayed in both religions from time to time.

Does anybody have the same problem? Is what I am doing offensive to you? It's tricky because I don't think I could abandon Buddhism due ancestral rituals and obligations.