It's totally ok.
We all need all sorts of relationships/connections, one doesn't compensate for the other. Most studies seem to suggest connection/relationships are crucial for a happy, good life(emotionally/mentally and even for health it can have a major impact) and close family and often the relationship one can have with a romantic partner is the most intimate and complex because it contains a lot of different sides to it.

So no, don't feel guilty about that. I feel the same way for ex, except I don't really have much of a family, just my mom, and I am almost friendless.