The first explanation: it is normal. After three years together, feelings will tend to be dull, and you can't be as passionate as when you first fell in love every day. If you get married for 5-6 years in the future, it will be even more dull. Try to accept it, that's life. If you really can't accept it, you can find a new passion, but the new passion is as dull as ever. Think for yourself.

The second explanation: when two people are together, the boiling point of feelings is sometimes the same, but it is often staggered, which means that sometimes you love him especially, and he just doesn't love you as much as you do. It is normal. Maybe a year later, your status will fall with him. At that time, you may be busy with something and have no time to talk to him, but in turn, he is particularly dependent on you and always wants to see you, just like you are now. This is normal, and many couples have met it.

Finally, there is a solution, that is, you can travel together and do some romantic things in a place where no one knows you two. It is easy to sublimate your feelings.