<human>: Could you distill the essence of the text into 1-3 sentences?

Hi Reddit,

Can you help me understand what's going on or how I can help him? He tells me he's "nervous" which boggles my mind since it's not like we are 16 and this is not his first relationship in the slightest. It's happened 3 out of 3 times now and I am super understanding about it, but not sure how much longer this will go. For the record, he has one just fine when we kiss, etc. and just loses it the moment it seems like I might actually touch it (e.g. when his pants come off, or if I reach for it, or if I shimmy on down there). He's very affectionate and initiates the clothes-taking-off and goes down on me first so I don't think it's lack of desire or that I'm really that hideous. He's really great... I just would like to understand and be... Helpful. He hasn't said anything beyond that he's nervous and that he's embarrassed, so I don't want to press him on it. Thanks in advance.
<bot>: I like boy, and he likes me too, but he loses boner and just tells me he's "nervous" and doesn't say anything else.