See, this is why kids need to learn how to date around first instead if just jumping straight into a relationship. If you were single and just going out on dates with Mr. Personality there would be no conflict here because you wouldn't have to dump him first in order to go out on a date with the other guy. And you would've discovered that the first guy isn't interested in you during the dating process instead of in the relationship. Now you gotta dump him, or maybe he's gonna dump you first. But if you were just dating casually there'd be nobody dumping anybody, you would just stop going out on dates with him. See how much easier and more efficient this is?
If you love two people at the same time, choose the second one. Because if you truly loved the first one, you wouldn’t love another. - Johnny Depp Now about what I think if you feel like your boyfriend doesn't do anything for you and doesn't show you his love, you should have a talk with him. Regardless the second guy your current relationship has problems. Communication is the key to everything. Have you ever tried to talk to him and tell him how you feel that you never talk or the fact that he is not demonstrative enough? Remember that some day you really liked that person, now you are in a relationship and you ow to your history a talk and lots of thought from your side in order to realize if he really doesn't care or is just that he is introvert type of person that needs time. But still if you don't like that you can still break up any time. Just think those things first and figure out that stuff before