<human>: Can you give me a shortened version of the text?

I've been seeing my bf for about 3 years, overall a good relationship. I love him to death and I have a hard time seeing myself without him. But lately I've noticed myself becoming more abd more mentally unstable. I have made an appointment to see a therapist on Wednesday because its become a really big problem.

Anyway the way I've been feeling lately is that I'm not really mentally fit to be in a serious commited relationship. I'm scared of being alone though, but i dont want to put my boyfriend through my problems. I want to fix them and try again later. I understand that having a companion to help you through your problems is great but i don't want to bring him down with me. He has a lot going for him and I really want him to live and be happy. I want some space from the stess of worrying about another person so I can focus on my own health. I really need to fix this...

So how can I bring up to him in a good way without hurting him? Am I being too irrational? Im lost, please help...
<bot>: Been with bf for 3 years, love him to bits but I think I need a break so I can work on my mental health since I feel like I'm falling apart from the inside out.