I’m best friends w my boyfriend but never had the “spark”, should I need the spark?

I been with him a year now. I feel content and happy but we never had that big “spark” or chemistry.

We both admitted we never felt “in love” but we love each other.

We have a great time together, tons of fun and talk for hours, communicate well when there’s an issue.

I have children from another relationship and we co-parent them with no problem.

We both want more kids.

All our desires and goals are the same.

But we both wonder, should we need that chemistry?

Are we “settling” (both in out early 30s, never married)

If we continue the relationship, are we doomed because we didn’t have that “need you right now, can’t be with out you”

Feeling?

Even from the start, we weren’t really like that. We just enjoyed each other. Like friends. lol that had sex.

The sex isn’t out of the world chemistry sex but we satisfy each other.

I just get concerned.

What if one day I want the “boom” or he wants it?

I had if before but never lasted.

What have you experienced?

We’re at the make or break moment and considering marriage.

But we want to be sure..

Any advice would be great 😊