Why is he ignoring my Facebook request?

It likely really hurt his feelings that you cut him out after seducing him. If the roles were reversed, wouldn't you hesitate at taking him back on there?

maybe he's just annoyed that you deleted him to begin with or doesn't like the relationship the 2 of you have to begin with .

he may also not be adding you cause he wants to keep the relationship private and not want people on fb to see it .

but I've been thru this type of thing as well and there's not always an easy answer for this type of behaviour or why people you know won't except a friend request or why they delete you to begin with

You remove him, you re-add him.
Perhaps he doesn't want to be some toy you throw a way and take back when it pleases you?

He has another girlfriend?

Ted

Honestly I see a few things here...

1) He could be uncomfortable with the relationship the way it's been left off after your last encounter.
2) He could be put-off by your seeming flightiness given your stated tendency to decide to disconnect without thinking it through first.
3) Perhaps he has a new interest whom he doesn't want to explain your reconnection with.

4) Something comepletely different.

If he will answer your text messages why don't you send one and ask? He can give you a better reason then any of us can.

MY opinion, not yours.
Cheers.

The problem I see here is that you are so focused on your feelings that you seem to be completely disregarding his. You pressured him to have sex with you, knowing he did not really want to. Then you deleted him from your friend's list because you are trying to get over him. Did you even bother to give him an explanation as to why? Can you really blame him for not wanting to re-add you? Anyone in his position would feel used and hurt. He is probably questioning whether you value him as a friend, because your actions haven't really been sending the message that you do.

If you really want to fix this, the only thing you can do is stop being selfish and playing games with his emotions, and just be honest with him. You are in the wrong, not he, so an apology is in order as well. I am not trying to sound harsh, but you have completely jerked this guy around, and have totally invalidated his feelings, and I can't exactly blame him for wanting to keep his distance. Good luck.

because being deleted as a fb friend HURTS. I'd be annoyed

You did it once before? And then again? That's probably why!
Like I always say; It takes SO much effort to delete someone from your Facebook, it's a shock when someone does. First you need to have the thought to delete them. Then you need to go through a list of all 1000 of your friends to find the person you want to remove. Then you need to click the X button, then Facebook asks; "Are you sure?" Then you must click "Yes". To do that, you must really not want the person around. To do that TWICE must be really confusing for him. Not to mention the fact that he didn't want to have sex, was forced to anyways, and then got de-friended? Try to understand his point of view. Any person would almost feel used. My advice would be to try and explain to this guy (if he means as much to you as it seems, he's worth it) with a little bit more than just your body that you want, need, and care about him. Let him know that he confuses you about as much as you probably confuse him. From now on, don't force one another to do anything. Whether it be sex, or talking about a serious relationship. Take your time with this guy, but subtly let him know how you feel. I think he'll come around. Good luck!