So,
its been a pretty warm "winter"
we actually only had 1 cold snap, with temps into the 40s.
and then only for a few days.
its now warming up again, and is supposed to be in the mid 70s
(mid 60s at night)
for the next few days.

i still have fruit on 1 tree.
one of them was semi-soft, and came off in my hand
it tasted terrible, but, im sure it wasnt ripe yet anyway.

i am wondering if those fruit will ever ripen ?
should i remove them and add to the compost ?

They are very unlikely to ripen.  I'm worried by the color of the wood.  It may be just the way it appears on my monitor but it doesn't look healthy.  If it's green turning brown that's fine, that's supposed to happen.  If not just barely scratch through the bark in a tiny spot.  If you see green it's fine, if not and you just barely got under the bark then it may be dead.  It's always best to have your location in your sig to get the best help.  In this case if someone experienced is near you and you're not sure you can take it to them.

Welcome to the forum in case no one's said it yet.

Do you have a Agriculture Center in your area? Here in Orlando Fl. we do. In the case that if you do then call and go to see them n person and ask them for their professional opinion.