Is it all about Feeling?

Hey, you guys!
it's quite long i've not been in here.
So i'm sure that i can count on you guys that's why i want you to help me some!

now i'm single and live alone for a few months also i just got a pain from the thing called "to fall in love" last 2 months.
I could make up my mind about that case but deeply i still regret it.

Umm, before going through my question, i have to introduce myself just a bit:
i'm 21 male, bi-curious, condisered myself as str8 way.

i used to date with girls for 3 times, but the ressult was she(s) didn't gave me any real expectation to continue the real relationship with me.
it seemed like i was used in many which ways; i cared her, gave her everything she wanted but after that she left me.

So that i turned myself to deal with the same sex, but it didn't work as well.

Okay, i wanna you to help me about these followings:
- How can i get back to deal with girls? 'cause they made me scared of loving according to the previous given information about my ex-gf.
- Does a sing from the eyes can tell us everything about each individual's feeling ?
- Why do i feel like impressionable to each outstanding one, just my type, on the street i walk passing by? is there any way to cope about it?

Wooh!
Thank you for your attention!
Have a Great day!

I think you just have to pick your self up off the floor and be prepared to take another fall intil you meet the right girl.

Sorry I couldn't be much more of a help but I didn't understand everything you were trying to say.

It doesn't matter guys or girls. Or friendship or love. It's all about compatibility, that's all. Pick a mate the same way you'd be picking a friend.