system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] did Thanos ever court lady Death before the events of infinity war?
gpt
In the MCU Thanos has very different motivations from what you're describing.  In the MCU Thanos is motivated by a mad crusade to reduce the population of the universe to in turn reduce their resource consumption.  It's unclear if Lady Death even exists as a concrete entity within the MCU (although that question may become more clear given the expanding multiverse and Eternals).