Does he STILL love me?...
You say "still loves me" which suggests that you have been in love as a couple before. Well; When a guy still feels for you, He usually gets jealous when you talk to other guys. You could test this by talking to guys that he knows and that he will find out about, but don't go out with his best mate or anything, That's just too far!
If you do this and sense a little bit of jealousy usually means he still likes you ;)
If you have dated this person before it is like that there fact that there will always be a little part of them that still has feelings for you, the line however where this is just that they care that you are ok and happy or if they love you is hard to define.
If this was a serious long term relationship and you want to know if they are still in love with you, the only way to find out might be to test the water yourself by sending them a message or an email, recalling a particularly good time in your relationship, maybe something special you did together and just say "I was just looking at holidays and remembered the lovely time we had in...still think of you often", and see what reply you get back.
what if we're still together and I don't think he loves me still?
If you are still dating, and you sense that he has fallen out of love with you, you're instincts are probably the best to go on here. We can tell when we feel loved, or if there are other issues getting in the way. If you feel like he has fallen out of love with you, as hard as it is, the best thing that you can do, is just ask him outright.
What if I don't want him to still love me?
If you have broken up with this person and wonder what his current feeling are and you are hoping that they don't still love you, try to keep all contact to a minimum which will ensure that they can move on, even if they do love you, the lack of contact will help them to get over you.