My boyfriend is never serious?

I'm a goofy and immature person and so is he, but when it comes to romantic or passionate moments he will ruin them by being too goofy. Well be being passionate, saying love you, and I'll feel really connected to him until he says something stupid and immature like "that burger was good". I find it really annoying, and now he's telling my coworkers about how it's a problem I have. It makes me feel like there is no passion. What do I do?
My boyfriend is never serious?
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