Sorry to read of your plight Lily.
I have read of many other women who fall for priests and it seldom ends well for them.
Unfortunately, if he feels unable to give up his vocation, you will be stuck forever in a relationship where your needs can never be met. I do not just mean sex. Even emotionally he can never be that close to you. It comes with the job - he has taken vows of obedience which mean he will always have to put the demands of his position before you.
If his bishop discovers that his relationship with you is threatening his vocation, he may decide to transfer him to another parish to 'protect' him from your influence.
Being in love with a priest is a bit like falling for a gay man - it is pretty much a dead end. Things can change, but more often they don't...
Women who become involved with priests also get little sympathy from the church.
Like Lynn, I am a former Catholic and cannot understand the policy of celibacy, along with about a thousand other things.
Sorry I cannot be more encouraging. If you Google 'women in love with priests' or similar, you will find websites containing many stories like yours.