A&C are still asexual and being in love and kissing doesn’t change that. Being Asexual is not synonymous with being aromatic.

Unless A&C are specifically stated in-show to be an ace couple (there is still hope), most viewers will assume they're homosexuals, not homoromantic asexuals = not ace representation. Same thing goes for B&G. Not explicitly ace, so reads as heterosexual = not ace representation.