Im 24 years old, and had 2 serious relationships, the first one 4,5 years long, since i was18. I didn't really have much time to spend on my own, which i really wanted so much, after i broke up. Because just 2 month after i broke up i met a guy i'm now with, and we're together for the past 2 years. This relationship is crazy, cause we've been breaking up from the beginning. We're good friends, and so much alike, we share many things, but to me it's very difficuilt to stay in this relationship. From the beginning i wanted more space, and i don't have problem with letting him go, even thou i do love him very much, but i'm so busy with work and study,and many other things, that not having a boyfriend won't really harm me, it will only give me more space. But he's the one who always hold on to me, and right now i feel like i'm hurting him, cause i always prefer to stay on my own, in stead of meeting him. He's talking about getting married and kids, but i don't even know if i want kids with him, or if i want to move in with him.  
The reason i have doubt is probably me, but there's also something that bothers me and makes me emotionally distant from him. He has 2 children from his previous relationship, they broke up before we met, and he still see his kids 2-3 times a week, he always babysit at least ones a week and their mom brings the kids every sunday. I like his kids very much, and i didn't have problems with his ex till recently. Recently (couple of months ago) i realized that she's too much in the picture, she always like to call him almost every day, and she comes to his place very often, just to say hi, she never stays long, but it's still bothering me. I found out that she's always 'there for him' when we break up or having problems. I trust him that he's not having a relationship with her, he loves me very much, and he's just a great father, but it difficuilt for me to place his ex in my life. Especially after i wanted to get to know her better, and meet her to talk to her, she just told me that she doesn't want to have anything to do with me. After that i started questioning her motives towards my boyfriend. Now i told him that i don't like her to come to his place unless she brings the kids, and he told her that, she doesn't come anymore, but i still don't feel happy. Is it me, am i making up problems that are not there? I know for sure i don't feel threatened by her, but when he start talking about living together, or having children, i'm just scared, how is that possible, i mean, how can i have kids with him when that woman is always in the picture, and she clearly doesn't like me? I'm just scared of getting more into him, that's why i choose to stay alone more and more, and it hurts him, cause he can't really do anything, and he miss me and stuff. I miss him too, but i'm just scared. What should i do? I feel so confused, can somebody please give me some advise? Thank you