Things might seem wonderful between you at first. You were lovers in another lifetime, and the old intensity of feeling will still exist between you in a strong passion that seems to swell each day. But soon, you'll both start to sense that something is off between you -- and this, too, will feel familiar.
Things didn't turn out that well between you in that past-life affair; your lover didn't understand you at a deep, emotional level, and you added to the problem by failing to put your feelings and urges into rational terms. You run the risk of making those same mistakes again in this lifetime if you aren't careful, because that old, painful dance will feel so familiar and even comfortable in its frustration. Your partner will once again start to sense that your styles of showing love and affection are very different from theirs, and perhaps even incompatible. Furthermore, you won't be terribly physically attracted to each other, at least not in the physical sense, and this will begin to wear on you when these other issues start coming to light. These issues aren't insurmountable, of course, but overcoming them will require that you admit there's a problem. Only then will you be able to start talking out both your feelings and seeing if you can reach some sort of compromise. If you want the relationship to last, you may have to learn to accept that appearances and attractiveness are more important to your lover than they are to you, and compromise with them on that level.