Does anyone ever feel like they're detaching themselves from their loved ones because they can't provide or see themselves as a failure?

I think I'm detaching from my current amazing girlfriend because I almost feel like one day, she'll stop putting up with me being a failure and leave me.  The pain of being broken up with my be too brutal to deal with and on top of that I feel non deserving.

With my parents/family, I feel like I can't provide for them the way I should/want at this age (30) and I find it so hard to even look hug them or hang them often.

This is just my conclusion. It could be my subconscious doing it. Nonetheless I'm just venting.

If you feel like this, I really hope you pull through from this feeling.