Search Results: possible not to forget a guy

Hello, so there actually is three different problems right now. Or should I say three guys. But shortly here is these three cases:

1) I have met a great and funny guy and we have been on two nice dates. He is sweet and easy to be with, but he also has a lot things I don't want from a man. (Have learned from earlier) But I thought I could meet him more, give him a chance and probably get a good friend at least.
Well, then he wanted me to come over and meet his family! Wait... what? I have met this guy TWO times and I don't really know him yet. Why would he want to introduce me to his family? I told him that not yet, and he kept saying: tomorrow? Tuesday?
Do you think there is any point to meet him anymore? I don't know if I can suggest being only friends while he is so excited...

2) A guy I have known for years goes hot and cold on me, and I thought I cut him off already for the last time. But now he is here again and I want to know how to get rid of this kind of guy who always forget we want different things. How can I cut him off when I still love him?

3) This last one is a little less of a problem. But I met a guy through instagram and he is from the other side of the world... We don't know much of each other but both are interested in meeting.
Is it really possible a really good looking and nice guy really would be interested in meeting some random girl from the other side of the world?

And I don't want to push him. I can see he's still angey with me and he has reason to be. I just want a chance to explain but I can't seem to earn enough trust to get him to agree to meet. I think he might think it's a truck or its just too stressful because I pretty much screwe him over though not intending to-- hence wanting to explain.

now I have not actually told him I want to talk alone. I've just asked him if he wanted to do something. Reason being 1 I don't want to make him nervous " talk". 2 in case I'm nervous and draw a blank I dont want him thinking its a game. 3. I thought ding something casual would help break the ice.

Anygow in in but making much headway here and he's already seemed kind of freaked out so I couldn't bring myself to actually tell him is like to talk. It's possible if I just said that I might have better luck , but I kind of feel like I'm pushing it saying anything at all...

so so should I just leave him alone and write him a letter to explain myself , though it really won't be at all the same as doing it in person?

or should I actually tell him directly I'd like to talk and ask him to meet up , and if he is still unwavering I just forget about trying to explain anything at all?