“I feel great that I’m hearing from you again”…is that a joke? You DON’T feel great that they treat you like that. Don’t be a doormat, it’s NOT OK to leave someone hanging, & saying that just allows them to get away with that kind of behaviour and think shelving you like a toy til they feel like playing with you again is OK. You’re better off acting disinterested & telling them flat out sorry but I’m not into that kinda thing, so you’ll have to put more effort in if you want me to stick around or I’m just going to assume you’re not interested and move on with my life. Do not allow people to treat you that way and reward bad behaviour by getting excited & happy they suddenly decide to return. Be true to yourself.
It's like with dogs or children — you stick to your guns and you politely, patiently repeat the boundaries until they respect them. He gets it or he gets lost. Period. If you truly start to follow this theory, he'll feel how serious you are about being respected, and if he's at all serious about you, he'll get aboard the good boy train very fast. He'll know that if he doesn't, he'll be left at the station!