You're not the first person who has found themselves in circumstances like this, megan. I have met many people online that have made mistakes with online friends, felt great guilt and sorted it out, going on to friendships that have lasted years. Others have confessed and closed that chapter of their lives and left it behind. No doubt some have simply run away.
Some people are just the same online as in real life, others find that their online selves help them work through things that are troubling them in real life and sometimes it means they do things online that they wouldn't in real life. Virtual and fantasy can get blurred, real and unreal. It can be quite confusing. I don't know if this is what has happened with you but I do know that the people here have seen a lot in life and would be generous to you.
The problem with avoidng problems because they make you feel bad is that they will always do so. One guilt adds to another, continuing to cause problems for you as you go through life. Our fears are almost always worse than the reality of facing up to something that scares us. Please do what you can to forgive yourself and let go of the guilt, otherwise being here will have harmed you more than helped. Now that would be something to be sorry about
That's what I've been wondering. We can help you find out why if you want, megan. I bet it has more to do with what's going on in the rest of your life than what's happening here. You've heard from the people here: there's nothing you could have done that wouldn't be forgiven. Believe us and whether you stay or go, let the affection that's been shown to you be a source of pleasure, rather than a source of guilt.