How to answer “what made you become vegan” question without getting into an argument?

When people find out I’m vegan the first thing they ask is “what made you become vegan?” But they don’t usually like my answer which is:

I love animals and don’t want to eat them

They get offended and say things like “well I like animals too and I still eat meat”. Which is bullshit so I just say respond by saying “ok” and try to avoid the conversation.

I’m tired of my morals being questioned and the topic for debate but I don’t feel like lying just to make people feel better. Is there a nicer way to answer his question while still being truthful?