Do you feel 'sparks' or 'fireworks' at the beginning of all of your relationships?

Well, the whole "sparks" and "fireworks" stuff sounds more like a impulse to me, rather than a sign of "2 people meant to be". What should count is the fact that the two of you get along, are comfortable together and feel safe and happy.

I barely felt any sparks at all while kissing my ex, but I still enjoyed his company, and felt very safe and comfortable with him. and that should always be what counts. He really shouldn't jeopardize relationships over something silly like that.