When you connect with people of this sign, you will feel that you both have a lot of lessons to learn from others. You both will feel the weakness and mistakes of others, so understanding each other's behavior. But to know if other planets, the moon and the ancestors of the two horoscopes can change the description of the relationship given above. But basically will not change the basic 2-12 sun sign compatibility.
But if the other planets in between the two horoscopes in particular month (month to show your inner feelings) and ascendants have a good relationship than a strong dedication, loyalty and respect will be there between you two. If the ascendants and the moon from the two horoscopes in the axis profitable than your relationships will be tense and difficult indeed.
So just check your compatibility with the sun just is not evidence of a pattern with the match making system. So better to get your horoscopes are eligible according to forecasters.