Help?

I have been dating my boyfriend for 4 years we live together it’s like we are married without actually being married. Well I decided to go out and have a fun night and I got drunk and this guy who worked at the club ask for my number and I gave it to him and he asked to take me out and we have been texting and I can see myself growing in like with this guy. My current relationship is soo boring sooo stagnant we hardly have sex, never talk about marriage. it’s just boring y’all I love him he literally does no wrong really but I’m so young I’m starting this think I wanna take a break for this. But idk