FREAKING OUT - PLS HELP

1.  i always initiate the text convos and i feel clingy.  he broke up with his last gf (a while ago, like he was probably hs freshman-ish) because she was too clingy and i feel super clingy whenever i try to talk to him because i want his attention which im not getting via text or anything.  my friends say he loves me and looks at me like im the world, but im not sure, which brings me to my next question.

2. i keep saying i love you and he doesnt say it in response as much anymore.  it never was an "i love you" "i love you too" kinda thing, but it was more regular.  i feel like he hasn't said it in a week or more.  im getting scared.  he used to text me good morning and goodnight everyday too.  now i initiate that as well.  also he didn't text me for 3 days this weekend, despite me trying to check up on him.  (oh god i sound crazy wow)

3. we recently got physically intimate for the first time.  im a hs senior and hes a junior, and we'd never gone farther than a small peck on the lips, so i invited him over to my house when my parents weren't home.  it advanced quickly because i was way excited and we ended up making out and i sucked his dick.  after that, he was all "omg" (i dont think he's ever done anything w anyone prior to this) and he was all lovey after that and confident.  i do want to hang out again and physically connect but like i feel scared that he doesnt want to because he hasnt said anything about it since.  not that he says anything sexual ever. 

4. i feel crazy am i crazy??  i love him, im just insecure and am hoping he's just a lazy boy who doesnt get girls rather than doesnt love me.  shoooot.

WHY DO I SUCK AT THIS?????