there will be many loves of your life dear. Not just one.
Some will have a dick like a babies arm, some may have a thumb.
Its all about what you two do together that gets you going. Intercourse is not the end all say all of sex, nor is it the only main activity. If it is, you dont know what you are doing.
Yes, size does matter. Some people fit, some dont. I have dated men that were just TOO big and not at all anything I would want to do.
I have dated men who were smaller as well. Obviously they had something to offer me or they would never have gotten to 'dating' status.
Stop looking for the love of your life through the penile looking glass
and just enjoy the sex.