I have been with DP for eight years, but don't want to anymore as I don't really love him.
I broke up with him last year, and then got back with him after a few months. All along, I have been confused about my feelings, and I didn't really know how I really felt about him. On one hand, he is a really nice, kind, caring man, and has been there for me..always. On the other hand, he is lazy, unmotivated and unambitious...playing computer games all the time when not working.
I don't have any children with him, but have come to a stage where I would like children (I am 32, and feel my body clock is ticking) but I just can't visualise having children with him. I just forsee so many problems ahead, including his lack of motivation, and reliance on me to be breadwinner etc.
I can't live like this anymore, and feel my spirit being pulled down to the pits. Last time, i was on the venge of depression.. I guess in reaction to the situation.
I feel very guilty about wanting to break up with him, as he is a nice person generally, and is also quite vulnerable. We are just not compatible on many levels. 
I also feel guilty that when I broke up with him, he was absolutely heartbroken, and in lots of pain. We were apart for about 6 months, and within that time, he met a woman with a baby, and they had moved in together, and were trying for a baby. So I do feel guilty that I took him away from that when we decided to have another go at the relationship. I care a lot for him, and how do I break up with him without causing more pain?
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I am worried that he will refuse to go, and that I am stuck with him. I have a chance to move to Canada very soon, and have just thought of making a secret plan, and just disappearing without telling him. I dread his reaction but I just want to be free with the most minimal stress...if possible.