Sounds like you've been around.
Ever dumped a guy because of the size?
Yep, twice. The first was way too big and it just hurt, there wasn't much you could do with it, it was that big. Couldn't fuck it without screaming and you most certainly couldn't suck it. I lasted only a few weeks with that one. It was frustrating for him too, so it was mutual.
The other time (this is a true story and I don't mind telling it), was a lovely Russian man/boy, 6' tall, shoulders and thighs etc. But he had a dick about 2 or 3 inches when erect. It took him ages to finally trust me enough to get his boxer shorts off, like months. I was wonderful, very patient and understanding and I taught him to make up for it by doing oral instead.
I'll never forget this & I wish I'd not thought it, let alone spoken it, I said "Maybe it was Chernobyl" He was like 20. I shouldn't have said that, it was an awful suggestion...
I got bored (believe it or not, because women are supposed to prefer oral to penetration) after about 6 months and nicely suggested that he find a girly his own age. He has done rather well for himself since, in fact...