you and Tom were some kind of.. friends with benefits, or whatever. Tom didn't care about you much, he only cares about his own needs. while you on the other hand were attached to him, catching some serious feelings. around Tom you felt safe, loved, even if it all was just for a moment and nothing official.
"but i'm tired of it! i'm tired of pretending we're something! you only care about yourself, when i seriously thought we're onto something!" you finally said what you wanted to say, after a long time of being silent. you were just afraid of losing him.
"nah i don't understand you anymore. i don't care about you! you agreed to this, it's not my fault you got 'attached' or something!" Tom snapped, annoyed by your sudden behaviour. it's not his fault you were the one to fall in love, right?..
"no, Tom. you don't understand. i love you, i feel like i can be myself around you. i only feel safe in your skin..."