Boyfriend problems

Okay y’all so I’ve been dating my boyfriend for a little over a year now and so far everything has been great he’s been sweet, romantic all of that. But lately he’s like being dry with me he gives me short answers he’s not being as romantic it seems like he doesn’t care anymore, whenever I bring it up to him though he says everything is fine. He’s been grounded for awhile but when we do get to see eachother in person everything is perfectly fine like nothing has changed. What do y’all think am I just being weird or what?