Question arises in my head, does it really have to be a red hot love to have it healthy? Without it, the road is all too bumpy and mistrusting?
My wife and I have been married 10 years, and we've been together for a total of 15 years. Something I've learned: love is a choice.
Sure red hot love can happen and it's nice when it does. Maybe it lasts a long time, maybe it doesn't. But that's not what keeps a relationship going for the long term. What does keep a relationship going is both partners choosing to love each other.
For me it's easy to love my wife because naturally we get along so well. That helps. Still we have been through many stressful situations together. We've had fights with each other, and with the world. As soon as the anger dies down enough we can think rationally again, we've always chosen to love each other and we've always worked things out somehow.
There's nothing special about us. We don't have any superpowers. We just both feel that the fairy-tale version of life is unrealistic. Expecting to be happy 100% of the time is unrealistic. Real life is hard. So we choose to support each other and try to make each others' lives a little better. And here we are, 15 years together and still going.
One other thing: after your baby is born, he/she will be your wife's #1 priority for a long time. This is normal and how it should be. After a while you may start to feel sad that your wife isn't paying as much attention to you, that's normal too. Resist the temptation to do anything stupid. Your child will always be first priority, but things will start to balance out over time. Don't worry.