Sorry to hear!
If you're interested in the odds of getting the variant you want, you can check out this thread here which has our relic loot rates:
http://forum.skullgirlsmobile.com/threads/official-fighter-relic-loot-rates.213/
If you're aiming for a Gold Valentine, and purchasing the character relic, then the rates are as follows:
So you'll have a 75.74% chance to get a bronze like
Icy Hot.
If you do manage to save up Theonite to do a 10 pull, the bonus relic you receive has double the odds at a Gold and Silver Character:
Which only has a 51.52% chance of getting a Bronze character.
If you really want
Last Hope, your best odds are with the Character Relic (Bonus).
The more characters you collect, the closer you'll be to getting a
Shard To Get relic, which guarantees a Silver character with a 5% chance for Gold.
If you log in every day to complete the daily log in bonus added in 1.4.1, you'll receive the
SILVER LINING relic which has a
10% chance at a Gold character, and a 90% chance for a Silver.
There's a lot of opportunities for getting golds characters, but it is challenging to get a specific gold that you're looking for.
I've seen a lot users also trying to get Last Hope with similar luck, she's a bit of a rare gem!
The exclusive Golds are exclusive and difficult to acquire.
If you'll settle for a different Valentine gold, you can try and get a high score on the Valentine Prize Fight to get
Silent Kill.
I hope you find one of the variants you're looking for!