While Queenie and Jacob had more chemistry, Tina and Nick are actually canon in the bio section of Nick in the Fantastic Beasts textbook. Unfortunately, it didn't seem like a natural pairing in the movie. Maybe because they rushed it? They literally have 4 other movies to realize their feelings for each other, so idk why this movie was the one to introduce that.I will agree that the relationships felt forced at the end. To me it wasn't as good as the Hogwarts years. It set up some interesting things down the road which we'll have to see how those pan out.