<human>: I'm not gonna go into details about why she broke up with me but suffice to say I'm autistic and often don't understand why something I've said upsets someone else.  In this case i said something so bad she just broke up with me later that week.  Not even to my face but via facebook.

I've checked with several friends and it is clear any normal person would realise what i said was going to really upset someone. 

The point is i still don't really understand why it was so upsetting,  all i now understand is that she was upset by it and even that took until two months after the break up to find out. 

She was really really in love with me. Wanted to marry me she said. Called me the love of her life.

So how do i ever move on from this? The chances of me finding someone else who feels like that seem really low and I'm worried I'll just make the same mistakes again. 

I'm also not sure if i even want a relationship. I love cuddling and i enjoy the intimate stuff well enough but all the rest that comes with it,  the responsibility and the having to think how the other person will react all the time seems tiring. I find it really hard to sleep when someone else in my bed and in general having to think for two gets really old really fast. 

So what do i do?  Any input is very welcome. I don't get out much so my opportunities for meeting someone are very low. Most people just want to be friends.

Can you condense the text into a few key points?
<bot>: first relationship ended quickly. Not sure how to prevent same outcome in the future. Should i even bother? Relationships don't seem worth it.