Contrary to what others have said, yes, you can achieve and maintain love with this disease - it just takes the right partner and a commitment to not letting your own depression drown it all out. I have been lucky enough to have one of these partners. We were dating when the back surgery occurred that started all this and 10 years later, we are happily married with children...how he was when the event took place 10 years ago was when I knew without a doubt he was the person I wanted to marry.
What is important is you get them involved in the process, you can't alone tell them what's going on, they have to read it and understand it for themselves to have any chance at somewhat understanding what we are going through (though they will never fully understand). We also need to recognize, as a partner, how this impacts them. We can be unpleasant people when in great pain and require more from our partners than we otherwise would - so we must appreciate them and take accountability when we are not our best selves. It's a daily struggle of despair, emotional suppression, guilt - but also of triumph, don't forget what you are overcoming every day. Make sure you have a good therapist who will not let you drain yourself and your loved ones in depression, it's definitely easy to do.
Keep up the fight and don't give up on love - you are so much more than this disease and deserve a great life and love.