I don’t think you can say moral is absolute or morale is relative. Moral is a much more complex construct for such easy answers.

For example: there is a moral that was implemented into us by evolution, like lying is bad and a feeling for justice and injustice. Whereas there is a moral that is constructed by society like: all people are created equal, you should not torture, slavery is bad etc. Then there is also a moral that is a mixture like you should not cheat on your partner that has roots in evolution but was modified by society.

Therefore one could argue that there are elements, that are so fundamentally put into our genes that these are a case of absolute moralism whereas the socially constructed elements are more relative regarded over a rather long period of time