Most Helpful Girl
You can but not until you have already moved on and you haven't not yet anyhow not if you are having goodbye kisses but it is possible just not now or you could wreck yourself. Im still friends with a lot of mine because i was friends with them while together and everything else fell away except for friendship and except for one of them.
Most Helpful Guy
Honestly, I've had a happy relationship 3 years which ended well. It honestly takes time (2 years for me), before I can truly not feel hurt by seeing her in her other life because it is so hard to think bad of her since the relationship was so good. The only way is to find someone who is great as her and that'll last longer and make you fall deeper in love.
However, there is another drawback. If she was your first love like mine, you'll never forget her. There is a part of you that will always love her. Maybe just as close friends, or more. But you'll always be fond of her. That's being truthful. That's what comes of a great relationship which didn't end bad.