Am I taking this too personally?

I just recently started dating a guy, and I feel that things have been pretty good. I visited him last week, and last night we made plans for him to come see me.

He likes to post memes on his FB page, and oftentimes makes snide remarks in each one. Well, yesterday, he posted a meme that said, "Whatever. I'll just date myself" And his comment was, "When you're tired of trying to date girls"

I took this personally, of course. We just started dating. Why would he post something like that if he's making plans with me?

Am I just overthinking this way too much and taking it out of proportion?
Am I taking this too personally?
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