Did you notice that Wednesday actually smiles, when she is with Tyler? First was a half-smile in this scene, when they had a "date" and he said "How do you feel about scary movies?". Both corners of her mouth went up. I think that was because he found her soft spot for scary things. Another time was when they kissed. It was a first genuine smile. That is why I feel like they are meant to be an endgame! The chemistry between this two is lethal.
These two are soulmates. It's not just love. It's an obsession with each other. Everyone is terrified of losing the other, forgetting that you can't get away from each other.
The way he says Wednesday after saying the only person lying here is you Wednesday is sooo tender. I so hope they are end game. If they were to make her his master then they can be together I feel. Tyler still loves her and she still has feeling for him also.