I have been with my partner of 15 years & recently have fallen out of love with her. She has a temper & she drinks a lot so it is scary for me. She senses a distance but how do I do this without hurting her. I also feel guilty & feel like I need to take crae of her.

You need to decide what is best for you - and the do it. Leaving is difficult from both sides. It's difficult to be left behind and it's difficult to leave.

She is not your responsibility.

You can always try counselling - if she'll go.