Unhappy w my boyfriend :/

I love him and he’s everything I’ve wanted yet I’m still sad. I don’t know what’s wrong with me but I’m just feeling so down lately.

I appreciate and love everything he does for me and he tries so hard and I just feel meh. That’s the only way I can describe it. I hate feeling this way. I just want to be as happy as I was when we first met and I’m just not and I don’t know what’s wrong with me. Or how to even explain this to him Bc I have zero clue how to explain it to myself