AFAIK, IPv6 does not truely address the router memory concern. With so many more addresses and more bytes-per-address in the tables, i imagine it’s only a matter of time till we are back to such fundamental woes as “where does this packet go”… but i suppose that is limited by the rate that people buy and move ipv6 address blocks.
For love as a standalone word, “value” is the most drop-in-compatible word. To say “i love you” is to say “i value you”.
The form of “in love” is a far greater mystery to me, and i usually just consider the speaker to mean something like “obsessed” or “infatuated”.