[¯|_(ツ)_|¯]

Has anything changed in your relationship to give you that "eh" type feeling? For example, has anything different/new been happening with you two lately?

Maybe you can explore more about what you're feeling and thinking when you feel "eh." For example, you said it's when you're not with him but are there any certain times you think about that more, or is it any time you're away from him?

Do you think that you need to find a "spark" again and try something new with him, such as going to a new place on a date or doing a new activity/game/hobby/etc with him? Maybe you need something different to rekindle some of those feelings and make it exciting to see him again.