I don't know what exactly i'm feeling or what is going on.?

I have an amazing boyfriend and we've been dating for almost 5 months. when we talk about how much we like each other it usually goes like this; i tell him how i feel then he pretty much sends back the same message for example: me: i really like you. him: i really like you too. that's not exactly what we say but you get what i mean. and for some reason i always feel like i want him too tell me more and i feel like hes just repeating me. but when i go too sleep he sometimes sends me a long message about how he really feels about me. and its not just that one topic. its sometimes everything. I really don't know why i feel like i want him to tell me more. i don't know if its just me being needy or what. But when i talked to my friend about this she told me that its not my fault and that i feel this way because of my relationship with my dad. My dad and i fight a lot. on occasions hes told me that i'm always wrong and i cant do anything right, and i never have his support, and me being a southern girl and growing up around 3 brothers i look up too my dad. i've almost always had to fight for his attention. but again im not sure if me and my dads relationship has anything to do with it, this is what was told to me by someone close to me, and i only want a second opinion. thank you.