He's just not The One.

I love him but I don't think I can spend the rest of my life with him anymore. I'm feeling very sad about it.

Maybe you love him, but you are not IN LOVE with him. There is a difference, I love my sisters but I'm am not IN love with them, my heart does not skip a beat when they walk though the door. Perhaps he feels more like a brother to you then a lover.
Is a shame its not gonna work, have you been with him for a long time?

You don't say how long you've been with this guy, or whether these feelings have come suddenly or gradually. After the initial honeymoon phase in a relationship, there is a change for both partners, and the dynamics of the relationship change in intensity, and there is a new sense of stability and security. This is normal, and it is impossible to maintain the heady feelings of the initial love rush for any sustained amount of time. Maybe this is happening in your case? You'll need to ask yourself some deep questions, and maybe sit down with your partner and talk about where the relationship is heading.

We have been together for over 12 months. We met when he was taking anti-depressants. He was patient then and caring but had no sex drive. I found it very hard to not be wanted or desired in such as way as being sexual with my partner is very important to me. So he went to see his doctor and has weaned himself off his medication. Things were great at first, his sex drive was pretty normal and he seemed to be laughing more but is also much more irritable and seems to lose his temper at the drop of a hat. We just looked after my 4yr old nephew for a few days and it was horrible. He had no paitence with the child and yelled and swore at him in anger when he didn't do what he was told. My nephew is now very scared of him. I feel horrible for allowing him to be sworn at and yelled at in such an angry manner, there was really no need for it. It has really hit home that I can not marry this man and have children with him. I'm very sad about it. I also have no where to go if we broke up as we live together. I'm feeling really trapped at the moment. He is going to go back on his medication as it seems he can't live without it. It's been about 4 months since he's off it so this is not just initial tension when first coming off them. We also haven't spoken since my nephew went home.

I love him so much but I'm in pain a lot of the time.

Oh hun, I'm so sorry to hear that you're in this situation. It sounds as if you really can't take any more. The fact that he was abusive to your nephew must have sent real alarm bells ringing. It doesn't sound good. If he has been abusive to your nephew,there really is no excuse, whether or not he is depressed. You also need to think about keeping yourself safe.

This may seem to be drastic, but maybe you could find out if there are any women's refuges in your area where you could stay. Or maybe the parents of your nephew could help, if you explained to them just how bad the situation is? If you approach your local social services office, they may be able to help you to get out of this situation, which seems to be eating away at you.

I really hope that you can find a way to get yourself out of this situation.