Ok i told him i like him and he said am kool wat do that mean?

do he just find me cool as a friend then . I text him all the time at first we usedto texted alot and talk on da phone now he be dry actin like he not intrested but when i go around him he seem intrestin is that an acted ? And he always stare at me when i go see him i been havin a crush on him for a year now and everytime i c him my heart drop to stomach .i been tryna to hide these feelin for a year now . But i cant any more plus i already had slept with him twice and before i even did i used to think about everyday but now my feelin havin grow stronger i dis cuz i even ask him was he datin or sleptin with someone else and he said no .he asked y i say that for and just wanted to know . But really it was because i really like him ! what should i do help please . Thank u for reading