Is it normal that may boyfriend is 3,5 years younger than me?

If you were 22, and he was 18, fine.

Almost 15? As in 14? He is underage!!! Even if both of you are consensual, someone else, like his parents, could report you. I'm quite positive you don't want a sex crime on your record, especially being labeled as a pedofile.

I know a straight couple that was in the same scenario, I even think their ages were the same. Her parents didn't like the situation, and informed the police. Not only did he serve jail time, he now has a permanent record of being a child molester. That never, ever goes away. Ever. He will be a "registered sex offender" his entire life.

I'm not sure where you are from, but child molesters do NOT fare well in prisons around here. The other inmates WILL find out, and it will NOT be good....

I don't mean to sound rude, harsh, or unrealistic, but seriously consider the consequences before you commit to a relationship that could completely destroy your entire future.

Find someone your own age...

Is totally normal I know a 43 year old guy who married a 19 year old girl.