Search Results: breaking up for someone else

I've been dating this guy for a couple of months now. He lives about 45 minutes away. We see each other on Saturday's because that's our only day off from work and school. He fell hard for me and I did too. I fell for him the third week of being together. I actually want a future with this guy. I want us to get our own place, get married and have kids. After talking to him he feels the same way and wants the same thing. :) I am genuinely happy! He treats me like a queen, gives me endless affection (I do the same for him), he doesn't keep me guessing (he tells me how he feels), he's sweet, kind, funny and he is there for me. The last time that he came over, we took pictures through Snapchat. I glanced over and saw that majority of messages in his Snapchat were from girls. He told me not to worry about it because they are just his friends and majority of his friends are girls. Of course I wasn't mad, because majority of guys are my friends. Since then I've been feeling different, I've been feeling really distant from him. I feel like he's going to hurt me by leaving me, finding someone else, or just Breaking up with me because of the distance even though it's not that far. At the same time I still want a future with him and I still have strong feelings for him. I know it's not infatuation because I would've gotten over that. I legit want a real future with this guy. Not some fantasy relationship.

So am I losing feelings for him? Am I being insecure and too guarded? Help!

My older sister is now 25, already finished her Master's in psychology and in a 1 year-old relationship. However, if there is anyone she has to be giving thank you to is me.

Brief flashback to 2012 (I was then 15):
She wanted to get married to her HS sweetheart and have kids. My parents obviously weren't happy about the news at all. In my mind I was thinking ''Are you stupid, what if it doesn't work out, get an education first''.

To make the story short, with the help of a couple of my 2 close friends and someone else, managed to successfully break up her engagement. She still believes to this day that he cheated on her. I couldn't bare seeing her stunting her education and relying her life on romance and prince charming. I always think of plan B if things don't work out. She doesn't know this however and never going to tell her.

Now, I don't oppose that anymore. She's free to settle down one day and form a family but when she was 19 and nearly wanted to quit college, obviously that was not the right moment at all.