Guys, My Boyfriend said i'm Gullible?

So he'd been drinking and hadn't long since got in, not long enough to sober up anyway, and we sometimes joke about it being easy for us to separate from each other (and so the context it was said in wasn't initially concerning). However this time he put his arms around me and said I believe all his feelings for me are true and that im gullible to believe it all... I questioned him the next day and he said he meant nothing by it and that he wasn't taking advantage of me being 'Gullible' and wasn't feeding me lies so that id stay with him. But now the doubt behind him saying this is growing in my mind, should i be worried?
Guys, My Boyfriend said i'm Gullible?
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