I am in love triangle and i dont know what to do i need an advice?

I've been with my boyfriend for 4 years we met when we were both freshmans in high school. When i was 17 i got pregnant and i decide go and live with him to his parents house (big mistake to live with his parents) we lived with them for a year and we finally got our own place. During these those years before i had my daughter we would fight a lot we would break up ang be back 2gether and there was cheating from from both part. Then i had my daughter and i tought he might change but no he would never help me with our daughter. Every weekend instead of taking me out to eat or go to the movies he woukd rather go out with his friends and spend his money with them than with me and our daughter. I really got tired of that and i started seeing other guys and 6 months ago i met this guy. When i am with this guy i feel so good with him. He makes me laugh all the time we always have a great time togheter. Lately my boyfriend has been very nice and helpful and we rarely fight anymore, but his acting like that because everytime we would fight i woul always cry and beg him to not go out with his friends but the last fights we had i stop doing that and i didnt cry and acted like i didnt care anymore and thats when he realize that he should start changing towards me because he feels that his losing me and he actually lost me already because im just with him for our daughter. But i dont know why im so scared to leave maybe its because he has dramatically changed he like does everything i tell him to do. I like the change he has but our life is not the same like i just see him as friend i really dont like having with him. With this other guy we have great and we do things that i wouldnt even try doing with my boyfriend i also like that his 9 years older than me. His like the perfect guy he has all the qualities that ive always wanted in a guy but im scare that he changes with me to.