However, depending on the context, you could use:
For a father figure:
* Tato (formal) - this is the most common and general term for "father"
* Tatus (informal) - a more affectionate way to say "father"
* Tatusiu (very affectionate) - a very endearing and playful term for "father"
For a romantic partner:
* Kochanie (darling/sweetheart) - a general term of endearment for a loved one
* Mój skarbie (my treasure) - a very loving and intimate term
* Miłość (love) - a term of endearment often used in a romantic context
It's important to note that the choice of term will depend on the specific relationship and the context of the conversation.
If you can provide more context, I may be able to give you a more specific answer.