Don’t make the mistake of assuming your partner knows how you feel without you showing it, yes they may know, but you must show it. There’s a huge difference between knowing that you are loved and feeling that you are loved. make the efforts to show your affection for your partner in whatever way you can. Like it or not, relationships grow through affectionate gestures.
You can do something for your partner that will make them feel special, something that they will really appreciate. Physical affection also goes a long way, holding your partners hand, little hugs and kisses, arm/back rubs. As little as they sound, they can do big things for your relationship.
Always keep in mind that it is the thought that counts.