There is a feeling of struggle between the two of you -- an urge on your part to be accepted and respected as an individual, pitted against your lover's blind eye to who you are as a unique human being. Though you both bring the best of intentions to the relationship, there is some block in your lover's view of you that can obscure their perception of you as a person. Part of the problem is that they've been dealing with feelings that exist on a deep, even subconscious level, feelings that impact their ability to truly connect with anyone, even their closest partners.
Perhaps past relationship experiences have made them stand resolutely on their own two feet, even when their lover is pleading with them to let down their guard and let them in. Or it may be that your lover was brought up in a household that wasn't overtly affectionate, and isn't used to the effusive displays of affection and declarations of devotion that come naturally to you. In some way, there's an emotional disconnect between the two of you, a feeling of knocking on a door that just won't open. This is frustrating at best, and could lead to arguments or prolonged hurt silences. The only solution to this kind of problem is space -- which will feel like the exact opposite of what you want between you! But in some way, you have to give each other room and time to grow as individuals, as well as to grow together as a couple.