my money is on Alex, he's.....her prince....
Probably won't be said by either. MC will not commit to one gal. In my experience with harem-style AVN, "love" is never a main subject and is usually reserved for female, however, Alex is too proud and learned to be independent. They'll fool around - maybe even a 3 some with Dalia at some point would be expected - but I don't think it'll go further in terms of emotion, or at least it'll never be said