We had a 'real love bug' as well, but she was nuts. I had a relative who thought he could train her, but she reared up when he was getting on her and dragged him enough so he broke his leg in several places.
Having a love bug is not enough reason to keep a horse. Some horses are just nuts. However, if you don't want to ride, there's no reason you should feel pressured to sell her. Not every horse owner is a horse rider.
Also don't keep her just because of guilt. That's not fair to your pocketbook.Good luck.
If you can't be brave, then be determined, and you'll end up at the same place.