<human>: So it's come to the time where I need to announce to my parents that I'm in a serious relationship..and it's long distance. I'm nervous, every time I try and approach the topic my mouth goes dry, I feel sick or I have to hold back tears. This is my second relationship, it's one I hold close to my heart and my mum's approval would mean a lot - he's 20, I'm 18. 

I'm just far too nervous to actually bring it up, I can't think of how to start because I've got so much to say (how happy he makes me, that she can meet him and his family on-line if she's nervous about the distance, how seriously I take the relationship and how comfortable and in love I feel). I just feel like she's going to think I'm silly since it's very long distance (USA/UK) and I don't know how to start talking.

I've thought about "I've got something I need to tell you about", "I'm in a situation with someone", "can I talk to you about something" and every time I go to say them I trip on my words. I'm not exactly brilliant at formally communicating something face-to-face, I tend to feel super awkward around my parents. My mum is quite understanding, both my younger brother and my older sister are in odd relationship situations which she's aware of and supporting, I keep telling myself this but it doesn't seem to be enough.

I've promised him I'll talk about it tonight and I absolutely refuse to break any promise to him, I'm just really unsure about how to bring it up without bursting into tears. If I had my choice I'd type it all out and give it to her but I know I need to have a proper conversation if she's going to take me seriously.

Any help with this would be great.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Need to talk to my mum about my long distance relationship (UK/USA) but every time I try to start talking I get stage fright. (I'm 18, he's 20).