n. a person who is sometimes overly sentimental in the provision of affection and endearment towards their partner.
They may not always be that way, nor is it necessarily a bad thing (although it is unbearable to others if witnessed).
Philemon: You're just the tastiest, butteriest, nommiest biscuit in the whole wide world, aren't you?
Baucis: No, *you're* the tastiest, butteriest, nommiest biscuit in the whole wide world.
Philemon: Oh, we're such mushballfaces. /butterflykiss
Hermes: d'omg, you two are insufferable.