Am I going insane, or is my roommate into me?!?

About eight months ago my roommate/very close friend was going through a very rough time, dealing past abuse. Nightmares and awful episodes of night terrors, I was there through thick & thin. If you are familiar with night terrors, you know how terrifying it can. Blood-curdling screams,intense fear, uncontrollable crying-- It got so bad I had to sleep in the same bed with her every night, or she couldn't sleep. Once she nearly broke her neck sleepwalking down the stairs. So naturally I was afraid for her own safety. Months later and she's been in therapy and has been doing immensely better. I still stay with her nearly every night. And the nightmares/terrors are rather scarce. So, here's the thing, over the past few months she’s become very attached to me. She is so utterly affectionate to the point where I am confused and not sure what the true nature of our relationship is. Lately every night she'll ask me to hold her & cuddle her more than we often do. I can't begin to count the amount of times we've woken up with our legs entwined, her face buried along the side of my neck. I am a girl and yes, gay. I don't mind at all doing any of these things for her. In fact I look forward to being there for her. Anyway it's sorta become habit, every night I rub her back or stomach, it helps her sleep. But last night she put her hand under my shirt running her hand and fingers against my stomach. She's never done that before. But I didn't bring it up or make a big thing out of it. The way she was touching me though just felt different in a sorta subtle way. Lately She's been kissing me on the lips very often…but the way she does it always leaves room for me to wonder. Is she hitting on me or is she just naive like that? When she hugs me it’s always full body, No matter where we are and she always lingers. I don’t know if this is normal for her. Sometimes I swear she knows exactly what she’s doing. Last night we both went out to a friends house party. Everyone was sitting in the living room talking and laughing. My roommate gets up from the couch, walks over to me in the middle of the room, full of people and wraps her arms around my waist. I am so comfortable and use to her I warped my arms around her, holding her. She said "I love you" leaned up and kissed me on the lips. But I am honestly not totally sure what this means? The way she said it and the way she looked makes me feel like she meant it not in a platonic way. The rest of the night she snuggled against me,her hand slipping under my shirt caressing my back, on and off. I do have very strong feelings for her. it's safe to say I'm very much in love. But I haven't come clean about my feelings. With the whole trauma she's been through I don't want to put any pressure on her.I just can't figure this girl out! I believe she is interested in more than just friends, but hasn't said so yet. Is it possible she is into me? Should I confront her about my feels & our growing situation?