Try your best to move on from this person @cjc78, you deserve a strong, happy and loving relationship with a partner who will give you unconditional support, you will find your knight in shining armour, be positive and don’t give up, you can do it, I’m always here if you need someone to talk too, message me anytime if you want, my inbox is always open, you are never alone (hugs)

It’s definitely normal.
Happy or unhappy relationship, it doesn’t change what you once had together. I recently got out of a very unhappy relationship, too, and I tend to feel lonely at times, thinking about her and missing her.
In the end, though, you know that it was the for the best, and that it’ll just take time and support to get through.