As others have said, depends on the kind of love, ie. platonic, brotherly/sisterly et al.
Think of the priest as another woman, in that its fine to love another person, even loving someone of the same gender, it is however, not fine, to seek that love in a physical or even heavily emotional way. So, yeah, just like there are people with SSA who have “crushes” on other people of the same gender, these peopel cannot act on those urges, as those actions are what makes the sin.
There’s no point in telling the priest, what benefit would that serve? It wouldn’t help the priest, it seems self serving to tell him. Not to mention it almost seems to be leading, ie. tell the priest in hopes he will throw off his collar and embrace the woman? No good could come of telling him that, I think.
What sort of intereaction does teh woman currently have with this priest? Is she his house cleaner and sees him everyday, or is she a reader at sees him maybe once a week?. Perhaps he counsels her in other situations, perhaps she lost someone or is having a hard time with certain things and he’s helping her there? If she’s married, and is seeking comfort from the priest then that’s boardering on an emotional adultery and is a whole different kettle of mortal sin.
IF the woman sees him all the time, she needs to perhaps move out of the situation, ie. if she’s his cleaner, quit, if she does reading, perhaps read at another mass or go to another parish, if she sees him rarely, or at weekly mass, then she will just have to get a handle on the situation as well.
Reality is, teh woman could put the priest in danger if she gets too deep involved, and whiel teh priest should have had education about what to do in this situation, it could still end badly. I know of a woman who “loved” a priest, and when he didn’t return her affections she went to the Bishop and said they’d had an affair. The priest was eventually found innocent, but it was a big scandal and mess and that woman’s spiteful action caused a lot of hurt.
Its not a sin to love a priest, it only becomes sin if the woman tries to action those urges or if she starts lusting after him.