Is this a dick move? No?

a couple months ago this boy would always flirt with me and he would always say how he should’ve asked me out when he had the opportunity. now he has a girlfriend and they’re probably the strongest couple in our year but at the start of quarantine, he text me saying if we went out back when he missed out on asking me, he was saying all the “things ;)” we would’ve done as a couple. but he’s literally got a girlfriend and it’s not me, he’s thinking abt all these things that he’d do with me when he’s got a girlfriend, me and the girlfriend aren’t really friends and if i tell her and she doesn’t find it a big deal, SHE’LL HATE ME