Public transport

Why is every single orifice of this planet filled with couples? I was in a tram and I saw one with a baby the other day, they were just hugging each other and smiling, why do I have to hate this? Why am I not happy for them? Am I that bad of a person?

Don't even bother trying to look away because there would just be another couple, I have to stare at the floor to not get triggered.

I feel like everyone is avoiding me too. Whenever I sit somewhere either nobody sits next to me or eventually the people that were already sitting leave and no one comes to replace them. Am I that repulsive or am I emitting some kind of a negative aura (I wouldn't be surprised)?