The feeling doesn't obey the evidence. It won't switch off when somebody disappoints you, and it won't switch off on the days you would quite like it to.
Worth separating, though, are loving a person and accepting everything they do. Those are different instruments. People go on loving through a terrible year while also saying clearly that something has to change.
The unconditional part belongs to the bond, not to the behaviour. Holding both at once is the adult version of it.
If you have swallowed something because you feared saying it would sound like withdrawal, it wouldn't. Love this durable can take a sentence.