Intended to be Mother IL said that if I dont marry her son she will let him look for another girl

Hi everyone.. I just had a conversation with my intended to be MIL and she said this which broke me right away..

I just went in my 23's and he is 31. I've known my boyfriend for 4 years.. but i havent achieved my bachelor's yet nor found a job..

The feeling of me getting married this year (thats what she wants/said) .. makes me scared for some reason..idk why..I wish I knew..I love my boyfriend but the only thing about him is that he works alot and hardly has time for us.. I cant remember the last time we went on a date.. or to the movies.. I've tried talking to him about us , many times he says yes he's will try the best he can for us to spend time together .. everything is still the same.. so i stopped trying and start focusing on myself and my studies more intensed. I used to not study because I would be thinking of when can we meet up or thinking about the next week i can see him and get lazy all the time.

I really love him..dont get me wrong.. i still get butterfly's in my gut when i see him..

But im scared to tie the knot. He just fineshed building his home earns a decent amount of money.

But its like i still prefer spending quality times together over all of that. Sometimes we dont have sex in 2 months.. i have a very high sex drive but i controlled myself to a level where i dont even care for sex anymore after it's been 4 long years.

Idk what to do.. I don't even have a job yet. I can't even think of having kidz after being married.. my mil want to have kidz from us.

I just don't know what i should do or what I am getting myself in to.. i do love him..i really do.. but I'm scared..what if it gets worse between us after marriage? When he wakes up 5:30 am he is going to work. When he comes home around that time I will be leaving for school which starts at 6 pm. When I come home it will around 9:45 pm. And my boyfriend sleeps very early.

How will married life be then if its so complicated now between us.. trust me I cant even see myself with someone else other than him..

I live with my parents and I'm the only child. They dont have anyone except for me and I love them more than anything in the world.

I'm sad.. and confused at the same time..