Well, Scarlett Yang was a huge support for Dominik too. He had to admit it. When she found out he was homosexual, she didn't make a problem out of it.
During the media campaign, she took his side. At the cemetery, when he decided to go to the funeral of Maciek Werner without telling anyone about it, she went to him and listened to what was on his heart.
Then, admittedly, she messed up with the kiss, but it was also good for them, because it allowed them to clear the atmosphere and now there was no awkwardness between them.
Maybe they did not know each other for long, but it did not take Dominik months and years to bestow someone with sympathy and kindness. It was enough for someone to show him warmth and kindness. He knew that such behavior was naive and frivolous, and that it could have unpleasant consequences (he found it out the hard way), but he still craved the company of people and gladly accepted the hand extended to him.