If the person you’re dating laughs at your goals in front of people, that’s not teasing. That’s a preview.

There is a difference between teasing and aiming, and the target tells you which is happening. Teasing lands on something small and runs in both directions. When it consistently hits the thing you actually care about, in front of other people, that is a position being made public with a laugh attached as cover. Early behavior is not a bad day, it is a sample.

Say once, privately and plainly, that you did not like it. How they answer matters more than the original joke, because someone who meant no harm stops immediately. Anybody who explains why you are too sensitive has answered a bigger question.